Cydia - An alternative app store for jailbroken devices.
AppAgg - Application Aggregator
Zestia - Zestia is a mobile app designed to assist you in organizing your hectic schedule, social life, and professional persona.
JazzMyApp - Let JazzMyApp surprise you with amazing apps everyday. Try it out yourself.
Fnd - Browse Apple App Store and iTunes on the Web
Magicube - Looking for the best Windows 10 apps? Check out these Universal Apps for PCs and Phones.