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Apps created with App Studio can be installed and run by anyone who has an internet connection. Once they are running on a device, apps can be saved locally on the device and will be available even when there is no internet connection available.
Apps created with AppStudio can be installed and run by anyone who has an internet connection. Once they are running on a device, apps can be saved locally on the device and will be available even when there is no internet connection available.


App Studio web apps are not sold in Apple's App Store. However, they can be used on any iOS device, jailbroken or not, without going through any review by Apple. They are normal HTML5 apps, and as Steve Jobs has said, "HTML5 -- it's a completely open, uncontrolled platform. And we fully support it."
AppStudio web apps are not sold in Apple's App Store. However, they can be used on any iOS device, jailbroken or not, without going through any review by Apple. They are normal HTML5 apps, and as Steve Jobs has said, "HTML5 -- it's a completely open, uncontrolled platform. And we fully support it."


If you want to sell your app, there are a few strategies.
If you want to sell your app, there are a few strategies.
Line 8: Line 8:
# Have a registration code input field in your program. The correct code has to be entered the first time the program is run.
# Have a registration code input field in your program. The correct code has to be entered the first time the program is run.
# Use a third party web app store. It will handle billing and downloads, and give you a percentage of the revenue. Samples of such stores are OpenAppMkt and the Chrome Web Store.
# Use a third party web app store. It will handle billing and downloads, and give you a percentage of the revenue. Samples of such stores are OpenAppMkt and the Chrome Web Store.
# Make your app into a native app [[Submitting_to_the_iOS_App_Store|using PhoneGap and submit it to Apple]]. There is an option on the Run menu for this.
# Make your app into a native app [[Submitting_to_the_iOS_App_Store|using VoltBuilder and submit it to Apple]]. There is an option on the Run menu for this.




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Your app needs to be deployed to a web server so that it can be loaded and run. There are several choices for web servers you can use.
Your app needs to be deployed to a web server so that it can be loaded and run. There are several choices for web servers you can use.


=== App Studio test server (nsbapp.com) ===
=== VoltServer ===
This is the default and will work without any extra setup. It is intended for testing only: do not rely on the app being available there forever. No PHP. This is the only option during the demo.
This is the default and will work without any extra setup. VoltServer can be used for testing and as a permanent location for your app, so long as you have a [[Subscriptions|subscription]] in place. It also has a number of features which add to AppStudio's abilities. No PHP. If you are using the demo, you can only deploy to VoltServer.
 
=== DropBox Public folder ===
Apps deploy and run well using your DropBox Public folder. Just give people the public link to the index.html file for your app. No PHP. To use it, select "Deploy to a local or DropBox public folder" in Deploy Options and put the path to your Dropbox folder in Local Path. (Something like c:\users\billg\Documents\My DropBox\Public)
 
If you have a newer DropBox account, you may not have a Public folder.  You can add one to your account by logging into the DropBox website and then clicking on the following link: https://www.dropbox.com/enable_public_folder


=== Local test server ===
=== Local test server ===
Line 29: Line 24:


=== A server of your own ===
=== A server of your own ===
This is the most powerful and permanent solution. It involves getting a website of your own with the appropriate settings. Select "Deploy to your own server" in Deploy options and fill in the Server, Path, Username and password.
This is the most powerful and permanent solution. It involves getting a website of your own with the appropriate settings. Select "Deploy to local server" or "Deploy to FTP Server" in Deploy options and fill in the Server, Path, Username and password.
 
There are a variety of own servers that you can use, for example Microsoft WebMatrix (IIS), Apache, Nginx, GWS to mention a few.
 
==== Using Microsoft WebMatrix ====
 
''Set Up WebMatrix''
 
1. Install Microsoft WebPlatform Installer
 
2. Install WebMatrix using WPI
 
3. Install PHP from using WPI
 
 
''Setting Up IIS Express to serve the Offline.appcache''
You will do this once fortunately.
 
 
Open the command prompt (run as administrator), and change the directory to where your IIS Express folder is,
this might be "c:\Program Files (x86)\IIS Express", in your DOS prompt
 
 
Type the following:
 
cd "Program Files (x86)" and press the <Enter> key
cd "IIS Express" and press the <Enter> key
 
Then type the following
 
'''appcmd set config /section:staticContent /+[fileExtension='.appcache', mimeType='text/cache-manifest']'''
 
and press the <Enter> key
 
Usually WebMatrix stores all your sites on the "My Documents\My Web Sites" folder of your profile.
 
''Set Up AppStudio to deploy to WebMatrix''
 
4. In AppStudio, go to Tools > Preferences of your project
 
5. Select Deploy to local server
 
6. On Local Path, select Browse and select My Documents\My Web Sites
 
7. Click Ok
 
8. On the Run Menu, ensure you are in Deploy to local server
 
9. Run your application, a prompt should pop up asking if you want to visit your site, click No. A folder will be created with your application files under My Documents\My Web Sites using your NSB project id.
 
 
''SetUp Your Site to run PHP (ability to serve ajax)''
 
Now, back to WebMatrix
 
11. Start WebMatrix
 
12. Click My Sites, if your site is not listed, select See All My Sites
 
13. Select your site from the list
 
14. Select the Site tab and then select Settings,
 
15. Select None as .Net Framework
 
16. On PHP settings, select Enable PHP and select the version you want of PHP
 
17. Restart your site
 
18. Select Run and select the browser that you want
 
19. Test your site if all runs well.
 
 
Because a folder has already been created using your App id from AppStudio, you can also select Open > Folder in WebMatrix to open your site. With PHP installed, all your Ajax calls made within your app will execute well and you can test your application.
 
'''Testing your Mobile Application with MITE: 2200 emulated smartphones & tablets'''
 
Before distributing mobile apps, you might want to test their performance and their delivery on "virtual" devices. Whilst Microsoft WebMatrix has functionality to install and test your mobile site using virtual packs for devices, there is also MITE, available at this website link, http://www.keynote.com/solutions/monitoring/mobile-web-monitoring-scripting-tool.


== Getting your project ready ==
== Getting your project ready ==


An important thing to remember is that you need to keep your app on the server, even after it is deployed to a device. When an app starts, it attempts to contact its original download location to see if there is an update. If there is no internet connection, the app continues normally. But if there is a connection and the app cannot be found on the server, the app is marked obsolete and is cleared from the device. The nsbapp.com server clears all projects that have not been used for a while, so it is not a good place to permanently host your apps.
An important thing to remember is that you need to keep your app on the server, even after it is deployed to a device. When an app starts, it attempts to contact its original download location to see if there is an update. If there is no internet connection, the app continues normally. But if there is a connection and the app cannot be found on the server, the app is marked obsolete and is cleared from the device. The AppStudio Server clears all projects that have not been used for a while, so it is not a good place to permanently host your apps.


When you deploy your app, it is transferred using passive ftp to your site. The ftp account information and directory are set in Deploy Settings. You may need to narrow the port range for passive ftp.
When you deploy your app, it is transferred using passive ftp to your site. The ftp account information and directory are set in Deploy Settings. You may need to narrow the port range for passive ftp.
Line 52: Line 125:
| Optional. Not supported on all devices. Set in Project Properties. This image is displayed when the app is started from the Home screen on the device. The image should be in .png format and be exactly 320x460 (1004x768 on iPad). If you don't supply a filename of your own, a default file will be used. If you save your app to the home screen, you will need to delete and resave it t if you want to change the splash screen. Important! Do not change the image (or any file) in the nsb folder.  
| Optional. Not supported on all devices. Set in Project Properties. This image is displayed when the app is started from the Home screen on the device. The image should be in .png format and be exactly 320x460 (1004x768 on iPad). If you don't supply a filename of your own, a default file will be used. If you save your app to the home screen, you will need to delete and resave it t if you want to change the splash screen. Important! Do not change the image (or any file) in the nsb folder.  
|-
|-
| /nsb/
| nsb/
| Required. This directory contains all the files that App Studio itself needs at runtime. Do not make any changes to the contents of this directory.
| Required. This directory contains all the files that AppStudio itself needs at runtime. Do not make any changes to the contents of this directory.
|-
| OfflineApp.appcache
| This contains a list of files to be included. It is created automatically at deploy time with filenames the IDE knows about, plus any files listed in the project's manifest property. Older apps may use the suffix .manifest, but .appcache is recommended (and, in the case of DropBox, required.) See "The Manifest File".
|-
|-
| images and js files
| images and js files
Line 62: Line 132:
|-
|-
|databases
|databases
|SQLite databases can be included with your app. Simply put the name of the database in your manifest. App Studio will take care of encoding the data and the schema and deploying it. When the app is loaded on the device, the database will be automatically reconstituted and will be usable right away.
|SQLite databases can be included with your app. Simply put the name of the database in ''extraFiles'' in Project Properties. AppStudio will take care of encoding the data and the schema and deploying it. When the app is loaded on the device, the database will be automatically reconstituted and will be usable right away.
|}
|}


=== Including Images with your project made simple ===
=== Including Images with your project made simple ===


# Put the images in your project folder. It's easiest to put them in a folder called images.
# Put the images in your project folder. It's easiest to put them in a folder called images. Do not add them to the "nsb" folder, since that folder gets wiped out during compilation.
# In the manifest property, put 'images'. Then all the images in that folder will be deployed with your app.
# In the ''extraFiles'' property, put 'images'. Then all the images in that folder will be deployed with your app.
# In your app, refer to the images by the simple pathname:
# In your app, refer to the images by the simple pathname:
<pre>
<pre>
Line 74: Line 144:
</pre>
</pre>


=== The Manifest File ===
=== extraFiles ===


The Manifest file is a file in your project directory which contains a list of all the files in your app. This file is created automatically by App Studio. You can maintain its contents in the IDE: it is in the top level of the Project Explorer, in the property Manifest. If you want your app to run in offline mode, you need to add the names of any images, folders or other files you app requires. These files must be located in the project's directory.
extraFiles is in Project Properties. It contains a list of all the files in your app. You can maintain its contents in the IDE: it is in the top level of the Project Explorer, in the property ''extraFiles''. These files must be located in the project's directory.


Make sure your web server serves up .appcache files with the MIME type text/cache-manifest, or else this won't work. For more information on doing this, see "Setting up your server for manifest files"
Here is a sample ''extraFiles'':
 
Here is a sample manifest property:
<pre>
<pre>
mario.jpg
mario.jpg
</pre>
</pre>
The manifest property should have a list of file names, one name per line. Folder names can also be included: they will automatically be expanded recursively. Subfolders are allowed.
''extraFiles'' should have a list of file names, one name per line. Folder names can also be included: they will automatically be expanded recursively. Subfolders are allowed.
You can put most types of files that HTML can use into it. The app file, icons, background and splash screen are automatically included in the application cache. You do not need to add them to the manifest file. Remember add your image files!
You can put most types of files that HTML can use into it. The app file, icons, background and splash screen are automatically included. You do not need to add them to ''extraFiles''. Remember add your image files!
 
To add an SQLite database, simply add its name to the manifest. An SQLImport() function will be automatically be invoked when you start your app to load the database the first time. If you want to use some of the options of [[SqlImport]], use the same format as that function:
<pre>
customers.db,DB,loadComplete,true
</pre>
The manifest file can also be used to deliver updates to the files your app uses.


When your app starts, it checks with the server (if available) and compares the manifest files to the one it last downloaded. If it has changed, an update is triggered. All the files in the new manifest are download and the application is restarted.
To add an SQLite database, simply add its name to ''extraFiles''. An SQLImport() function will be automatically be invoked when you start your app to load the database the first time. If you want to use some of the options of [[SqlImport]], use the same format as that function:
 
You can force an update to your app at any time by executing the following statement:
<pre>
<pre>
window.applicationCache.update()
customers.db,DB,loadComplete,NSB.overwriteAlways
</pre>
</pre>
This is useful if a file you are reading from a remote site may have changed. In this case, the manifest file will not have been updated.


=== Installing your App on a device ===
=== Installing your App on a device ===
Line 112: Line 171:


On Android, it's a little more complicated. Up till Android 4, the browser was call Android Browser and used a similar process to add the the Home screen. In Android 4, the Mobile Chrome browser was introduced. On some devices, usually those branded as Google, only Mobile Chrome is available. Mobile Chrome is not complete: it is still missing some cosmetic features. See https://code.google.com/p/chromium/issues/list?can=2&q=OS:Android&sort=-stars&colspec=ID%20Pri%20Mstone%20ReleaseBlock%20Area%20Feature%20Status%20Owner%20Summary%20Stars
On Android, it's a little more complicated. Up till Android 4, the browser was call Android Browser and used a similar process to add the the Home screen. In Android 4, the Mobile Chrome browser was introduced. On some devices, usually those branded as Google, only Mobile Chrome is available. Mobile Chrome is not complete: it is still missing some cosmetic features. See https://code.google.com/p/chromium/issues/list?can=2&q=OS:Android&sort=-stars&colspec=ID%20Pri%20Mstone%20ReleaseBlock%20Area%20Feature%20Status%20Owner%20Summary%20Stars
== Setting up your server for manifest files (Apache) ==
If you are going to distribute your app from your own server, you will have to check if it is serving the OfflineApp.appcache (or .manifest) file with the correct MIME type. To test what mime type a document is being returned as, use http://web-sniffer.net. Enter the url to your manifest file: for example, http://www.nsbapp.com/myProject/OfflineApp.manifest. The result will be displayed in "Content-Type": it should be 'text/cache-manifest'.
=== Modify mime.types ===
The first method to correct the MIME type is to modify the mime.types file. Here is where you will find it:
<pre>
<IfModule mime_module>
    #
    # TypesConfig points to the file containing the list of mappings from
    # filename extension to MIME-type.
    #
    TypesConfig /private/etc/apache2/mime.types
</pre>
If your server is running Apache (most likely), you need to edit this file:
<pre>
  /user/local/apache2/conf/mime.types
</pre>
Add this line to the end:
<pre>
text/cache-manifest appcache manifest
</pre>
You will need to restart Apache so the settings take effect. Could be something like
<pre>
  restart_apache
</pre>
from the shell.
What's happening here is that the server needs to return the cache file back to you with the proper content type set. If you don't do this, the file will probably come back as 'text'. If set properly, it will come back with a type of 'cache-manifest'.
=== Use the .htaccess file ===
If your webserver is hosted by an ISP you will may not be able to edit the "mime.types" file (server administrators are understandably reluctant to allow just anyone to modify their server's configuration!) If this is the case, you can usually provide a configuration file that will apply only to your personal server area. This file is named ".htaccess", and is sometimes used to control password access to portions of your website.
In the root of your website directory, if it doesn't already exist create the .htaccess file and include the line "AddType text/cache-manifest .manifest" (omit the quotes). The .htaccess file will now specify the new manifest MIME type.
Here's the minimum .htaccess file:
<pre>
  AddType text/cache-manifest .appcache
  AddType text/cache-manifest .manifest
</pre>
The .htaccess file is used by Apache servers, and by some others as well. The Apache server may, as an option, ignore .htaccess files, so this technique may not work.
For more information, see http://httpd.apache.org/docs/current/howto/htaccess.html and http://en.wikipedia.org/wiki/Htaccess .
(with contributions from Paul Elliott)
== Setting up your server for manifest files (IIS) ==
If you are going to distribute your app from your own server, you will have to check if it is serving the OfflineApp.appcache file with the correct MIME type. To test what mime type a document is being returned as, use http://web-sniffer.net. Enter the url to your manifest file: for example, http://www.nsbapp.com/myProject/OfflineApp.appcache. The result will be displayed in "Content-Type": it should be 'text/cache-manifest'. If it is not, you'll need to change the setting in IIS. Here is where to look for it:
[[File:TN05.01.png]]
You will also need to add index.html to the list of names used the the default context page as follows, if it is not there already.
[[File:TN05.02.png]]
''with contributions from Tony O'Brian''
Here are the contents of the working web.config file which resides in the website route directory on a Hostgator Windows server:
<pre>
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <handlers>
            <remove name="Perl-CGI-cgi" />
            <add name="Perl-CGI-cgi" path="*.cgi" verb="GET,HEAD,POST" modules="CgiModule" scriptProcessor=""C:\Program Files (x86)\Parallels\Plesk\Additional\Perl\bin\perl.exe" "%s" %s" resourceType="Either" requireAccess="Script" />
        </handlers>
        <staticContent>
            <remove fileExtension=".appcache" />
            <mimeMap fileExtension=".appcache" mimeType="text/cache-manifest" />
        </staticContent>
    </system.webServer>
</configuration>
</pre>
''Contributed by Graham Pettican''
== Setting up on a GoDaddy server ==
If you're hosting is on a shared GoDaddy server runnimg Windows and IIS, it would seem that in order to set up your custom web.config file an upgrade to a virtual dedicated sever is needed. Another, likely also less expensive approach, would be to switch to Linux hosting running Apache. Then you could create a .htaccess file to contain the following line:
<pre>
  AddType text/cache-manifest .appcache .manifest
</pre>
Place this in the root of your site (in which case it affects the entire site) or in a directory where you will keep your apps (and in which case only that one directory will be affected)
''with contributions from Johann Vogel''

Latest revision as of 15:34, 25 February 2021

Apps created with AppStudio can be installed and run by anyone who has an internet connection. Once they are running on a device, apps can be saved locally on the device and will be available even when there is no internet connection available.

AppStudio web apps are not sold in Apple's App Store. However, they can be used on any iOS device, jailbroken or not, without going through any review by Apple. They are normal HTML5 apps, and as Steve Jobs has said, "HTML5 -- it's a completely open, uncontrolled platform. And we fully support it."

If you want to sell your app, there are a few strategies.

  1. Set up a web site which requires a sign on code to access the download info. Give the sign on code to people who have paid.
  2. Have a registration code input field in your program. The correct code has to be entered the first time the program is run.
  3. Use a third party web app store. It will handle billing and downloads, and give you a percentage of the revenue. Samples of such stores are OpenAppMkt and the Chrome Web Store.
  4. Make your app into a native app using VoltBuilder and submit it to Apple. There is an option on the Run menu for this.


Distributing Web Apps

For a good background into how this all works, there is a great chapter in Mark Pilgrims's book Dive Into HTML5. The chapter on Offline Apps is here.

Your app needs to be deployed to a web server so that it can be loaded and run. There are several choices for web servers you can use.

VoltServer

This is the default and will work without any extra setup. VoltServer can be used for testing and as a permanent location for your app, so long as you have a subscription in place. It also has a number of features which add to AppStudio's abilities. No PHP. If you are using the demo, you can only deploy to VoltServer.

Local test server

You can set up a local server on your own system. This is good for testing, but not usually very good for outside users who want to run your app. To use it, select "Deploy to a local or DropBox public folder" in Deploy Options and put the appropriate path into Local Path.

A server of your own

This is the most powerful and permanent solution. It involves getting a website of your own with the appropriate settings. Select "Deploy to local server" or "Deploy to FTP Server" in Deploy options and fill in the Server, Path, Username and password.

There are a variety of own servers that you can use, for example Microsoft WebMatrix (IIS), Apache, Nginx, GWS to mention a few.

Using Microsoft WebMatrix

Set Up WebMatrix

1. Install Microsoft WebPlatform Installer

2. Install WebMatrix using WPI

3. Install PHP from using WPI


Setting Up IIS Express to serve the Offline.appcache You will do this once fortunately.


Open the command prompt (run as administrator), and change the directory to where your IIS Express folder is, this might be "c:\Program Files (x86)\IIS Express", in your DOS prompt


Type the following:

cd "Program Files (x86)" and press the <Enter> key cd "IIS Express" and press the <Enter> key

Then type the following

appcmd set config /section:staticContent /+[fileExtension='.appcache', mimeType='text/cache-manifest']

and press the <Enter> key

Usually WebMatrix stores all your sites on the "My Documents\My Web Sites" folder of your profile.

Set Up AppStudio to deploy to WebMatrix

4. In AppStudio, go to Tools > Preferences of your project

5. Select Deploy to local server

6. On Local Path, select Browse and select My Documents\My Web Sites

7. Click Ok

8. On the Run Menu, ensure you are in Deploy to local server

9. Run your application, a prompt should pop up asking if you want to visit your site, click No. A folder will be created with your application files under My Documents\My Web Sites using your NSB project id.


SetUp Your Site to run PHP (ability to serve ajax)

Now, back to WebMatrix

11. Start WebMatrix

12. Click My Sites, if your site is not listed, select See All My Sites

13. Select your site from the list

14. Select the Site tab and then select Settings,

15. Select None as .Net Framework

16. On PHP settings, select Enable PHP and select the version you want of PHP

17. Restart your site

18. Select Run and select the browser that you want

19. Test your site if all runs well.


Because a folder has already been created using your App id from AppStudio, you can also select Open > Folder in WebMatrix to open your site. With PHP installed, all your Ajax calls made within your app will execute well and you can test your application.

Testing your Mobile Application with MITE: 2200 emulated smartphones & tablets

Before distributing mobile apps, you might want to test their performance and their delivery on "virtual" devices. Whilst Microsoft WebMatrix has functionality to install and test your mobile site using virtual packs for devices, there is also MITE, available at this website link, http://www.keynote.com/solutions/monitoring/mobile-web-monitoring-scripting-tool.

Getting your project ready

An important thing to remember is that you need to keep your app on the server, even after it is deployed to a device. When an app starts, it attempts to contact its original download location to see if there is an update. If there is no internet connection, the app continues normally. But if there is a connection and the app cannot be found on the server, the app is marked obsolete and is cleared from the device. The AppStudio Server clears all projects that have not been used for a while, so it is not a good place to permanently host your apps.

When you deploy your app, it is transferred using passive ftp to your site. The ftp account information and directory are set in Deploy Settings. You may need to narrow the port range for passive ftp.

Setting up your files

There are a few files which need to be present in your project's directory for deployment. The Deploy option on the Run menu makes this easy: the files and folder are copied into your directory automatically.

myProject.htm Your app. This is created by the IDE: the actual name of the file is set in the IDE. This needs to be a valid UNIX filename - no spaces or special characters. After being copied to the server, it is renamed index.html.
LauncherIcon.png The icon for the app, set in Project Properties. This has to be in .png format, and be 114x114 pixels in size. If you don't supply a filename of your own, a default file will be used. Important! Do not change the image (or any file) in the nsb folder.
SplashScreen.png Optional. Not supported on all devices. Set in Project Properties. This image is displayed when the app is started from the Home screen on the device. The image should be in .png format and be exactly 320x460 (1004x768 on iPad). If you don't supply a filename of your own, a default file will be used. If you save your app to the home screen, you will need to delete and resave it t if you want to change the splash screen. Important! Do not change the image (or any file) in the nsb folder.
nsb/ Required. This directory contains all the files that AppStudio itself needs at runtime. Do not make any changes to the contents of this directory.
images and js files Any images and additional JavaScript (.js) libraries your app uses. Images can be anything that a browser can display: .gif, .jpg, .bmp, .png and more. Filenames should be good UNIX names: no spaces or slashes.
databases SQLite databases can be included with your app. Simply put the name of the database in extraFiles in Project Properties. AppStudio will take care of encoding the data and the schema and deploying it. When the app is loaded on the device, the database will be automatically reconstituted and will be usable right away.

Including Images with your project made simple

  1. Put the images in your project folder. It's easiest to put them in a folder called images. Do not add them to the "nsb" folder, since that folder gets wiped out during compilation.
  2. In the extraFiles property, put 'images'. Then all the images in that folder will be deployed with your app.
  3. In your app, refer to the images by the simple pathname:
   images/myImage1

extraFiles

extraFiles is in Project Properties. It contains a list of all the files in your app. You can maintain its contents in the IDE: it is in the top level of the Project Explorer, in the property extraFiles. These files must be located in the project's directory.

Here is a sample extraFiles: 

mario.jpg

extraFiles should have a list of file names, one name per line. Folder names can also be included: they will automatically be expanded recursively. Subfolders are allowed. You can put most types of files that HTML can use into it. The app file, icons, background and splash screen are automatically included. You do not need to add them to extraFiles. Remember add your image files!

To add an SQLite database, simply add its name to extraFiles. An SQLImport() function will be automatically be invoked when you start your app to load the database the first time. If you want to use some of the options of SqlImport, use the same format as that function: 

customers.db,DB,loadComplete,NSB.overwriteAlways

Installing your App on a device

If you have everything set up, your app will actually run your device right after you deploy. Go into your browser (Safari on iOS), and enter the URL for your app. 

  http://www.nsbapp.com/myProject

You're running as an online app right now. Its appearance will be like a web page. But if you add it to the Home Screen, an icon will be created in the Launcher and the app will look like you intended and not part of the browser.

To do this in iOS, tap on the plus (+) sign at the bottom of mobile Safari and choose "Add to Home Screen". The app is now installed as an offline app, no different than any other app in the Home Screen.

On Android, it's a little more complicated. Up till Android 4, the browser was call Android Browser and used a similar process to add the the Home screen. In Android 4, the Mobile Chrome browser was introduced. On some devices, usually those branded as Google, only Mobile Chrome is available. Mobile Chrome is not complete: it is still missing some cosmetic features. See https://code.google.com/p/chromium/issues/list?can=2&q=OS:Android&sort=-stars&colspec=ID%20Pri%20Mstone%20ReleaseBlock%20Area%20Feature%20Status%20Owner%20Summary%20Stars

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