Advanced searching in Play app store?
I created this.

It's an advanced Google Play search engine, I wanted to create that a long time ago. Now, it's done 

Since Google doesn't have an API for Play search, I use an open source scraper.

Almost all app specs can be filtered and sorted.

I hope you'll like it, and please let me know if you find any bug or have any feature request.

It's open source : KPlaysearch