What are some alternatives?
When comparing Battle Exchange and Quick Code, you can also consider the following products
hackattic - No nonsense, real world programming challenges
Mimo - Learn how to code on your iPhone📱
Frontloops - Level up your frontend skills with handcrafted tasks
Code4Startup - Learn Ruby on Rails, Python, AngularJS, NodeJS, React, Ionic by cloning AirBnb , TaskRabbit, Tinder, Product Hunt, Fiverr and . more.
Py - Learn to code on the go 📱
Code Fight Club - A fight club you can talk about. Less punching, more coding.