Are Android 2.2 apps compatible with Android 3.1?

Question

Android

In particular, I'm interested in whether the Moon Reader + ColorDict bundle (with Lingvo dictionaries) will work just as well on the Samsung Galaxy Tab 10.1 as on the HTC Desire?

Answer 1

It will function, it's undoubtedly, I just don't have these applications, I use FB2Reader as a reader, it works great.
The only problem that may arise is the lack of adaptation of applications to the screen size. The application in this case will either be centered on the screen or stretched to full screen, depending on the settings.
But now, already in many applications, adaptation to the large screen is taken into account, so you should not worry - it will work.

Answer 2

Depends on the specified parameters of the developer, who can simply set max api less than 12 (12 = 3.1.x), as well as the specified parameters of possible screen resolutions.