F-Droid - F-Droid is an interesting alternative for Android users who want to try something different and not have to use the Goole Play store all the time.
AndreaMosaic - With AndreaMosaic you can create your own photographic mosaics made with your own pictures.
APK Pure - Download apk for Android with APKPure APK downloader. NoAds, Faster apk downloads and apk file update speed. Best of all, it's free
Mosaic Creator - Mosaic Creator is professional mosaic tool. You can create your own picture mosaic.
APKMirror - Android Market and APK Downloads
WidsMob Montage - Make stunning mosaic photos or montage shape with tiles, which supports both JPEG and PNG files.