Open the app from browser if it exists or open the market to install the app
49229
Detect from browser if a specific application is installed in Android
43045
Prevent applications from opening browser
15228
Why are some apps on the market incompatible with my device?
114690
Link to an app in the App Store before approved?
148764
WebView link click open default browser
96480
How can I add a new application to the Open With menu?
21617
Why can't I press the Install button when installing applications from unknown sources?
61498
How can I open a single app by an unidentified developer without allowing all
25820
How do I open the Settings application from my application?
117360
Check if the application is already installed
61285
iPhone App:Test the newer version of app first and after make it available for other users for download
120616
Adding "Open In..." option to iOS app
108568
Open the default browser in Ruby
112794
Enable click-through, preferrably for all applications
28875
Installing applications from source
10987
How do I view or install Ubuntu Touch apps?
101278
How can I add an application to the list of Open With applications?