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