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.
Zeplin - Collaboration app for UI designers & frontend developers
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
Mightytext - Send & Receive SMS Text Messages from your computer. Sync'd with your Android #
APKMirror - Android Market and APK Downloads
ActiveWords - Auto correct on steroids