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

Apple App Store - Install apps on your iDevice via the App Store.

Mobango - Mobango is an alternative Android market.

Cydia - An alternative app store for jailbroken devices.

Blapkmarket - Blapkmarket was one of the largest repositories of the Android apps over the internet that in addition to offering the paid apps of Google Play Store was offering its own developed apps for free as well.

iNoJB - iNoJB, formerly iNoCydia, is an amazing Cydia alternative requiring no jailbreak!