XDA Labs

The XDA-developers app store

Amazon Appstore

Amazon's Android app store

Anzhi Market

Alternative to the Google Play Store

Tencent My App

Tencent's apps store

APKUpdater

Find updated versions for your apps

Cafe Bazaar

An Iranian application store

Yalp Store

Download apps from Google Play in APK format

AppValley

Store for free apps

4399 GameBox

4399 is a store from which we can download thousands of games for Android

Update Play Store Info

App for manually updating Google Play

Dream Apps Market

Store that selects the most popular applications from Google Play

Steam

The official app of the video game platform for PC

Waptrick

Access one of the most popular online resource repositories

/r/Android App store

App store for Android based on a reddit thread

Apptoko

An app store focused on the Indonesian audience

Unlinked

Create your own library of apps, videos, and photos

Udemy

Access the online course platform from your phone

YourStep

Optimize your study and work sessions

Knowunity

Student community for sharing and downloading notes

Moodle

Resource and contact platform for teachers and students

Lingokids

English lessons for kids

Alison

Free online courses with certificates

Minecraft Education

The teaching-focused version of Minecraft

BYJU'S - The Learning App

Platform for learning and reinforcement of school subjects

Merge Object Viewer

An interesting 3D object viewer

Kahoot!

Teaching app for Android based on games

Socratic by Google

Settle your academic doubts thanks to your smartphone

Java N-IDE

Offline Java compiler

Khan Academy

Learn with thousands of educational videos

Google Classroom

Google's app for educational environments

PRONOTE

Management tool for French schools