Hi, I'm developing android Japanese dictionary, similar to Japanese on iOS, by myself in my free time. I was looking for some general feedback. How much interest is there for an app like this? What features would you want/need? What version of android would you use? Any thoughts or comments are welcome.

You could look into forking AEdict: https://code.google.com/p/aedict/
There haven't been any updates for years, but there are still lots of open feature requests.

If you really want to create a completely new app, the features I need (and like about AEdict are:
- Offline dictionary
- Bookmarks/Notepad with an export-function
- Lookup by radicals
- Sample sentences

As for the Android version: While I personally use 4.0.4., supporting at least 2.3.3 (API Level 10) seems like a good idea: https://developer.android.com/about/dash...index.html

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Take a look at JED:

http://www.umibouzu.com/jed/

It's no longer under development (last I heard), but you would want to match the functionality.

Like Tamba states, you really need to support older versions of Android. I think 2.7 is the most used version of Android, followed by 4.0.x

Using an epwing dictionary with an application like droidwing is really great. There are some really high-quality J-J dictionaries available for *cough* free *cough* if you know where to look.

I'm thinking of putting source code on github for a dictionary I developed on Android. It's really simple but I can post link to source code when it's available if anyone is interested.

It's this app (no english version yet sorry):
https://play.google.com/store/apps/detai...Dictionary