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.
Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
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
Zoho CRM - Omnichannel CRM for Businesses of all sizes
APKMirror - Android Market and APK Downloads
Freshsales CRM - A full-fledged CRM for high-velocity sales teams.