Kattis helps companies make safer recruitments and attract the best developers with its dynamic challenge platform.
Cost / License
- Paid
- Proprietary
Sweden
EUPlatforms
- Online
CheckIO Alternatives
CheckIO is described as 'Online game for Python and JavaScript coders to improve skills' and is a Code Learning service in the development category. There are more than 25 alternatives to CheckIO for a variety of platforms, including Web-based, Windows, iPhone, Linux and Android apps. The best CheckIO alternative is exercism, which is both free and Open Source. Other great apps like CheckIO are SoloLearn, LeetCode, HackerRank and Codewars.
Alternatives list
CodeKidz is an AI-powered, interactive programming platform for kids aged 7-15. It offers Python coding lessons through storytelling and gamified experiences, with real-time code execution. The platform features an AI teacher that provides personalized coaching, and rewards...
Cost / License
- Freemium
- Proprietary
Platforms
- Online
+2
Take-Home Coding Assignments That Provide Real Insights. Identify great candidates using real tasks, not brainteasers. Streamline your tech recruiting workflow and make better hiring decisions.
Cost / License
- Paid
- Proprietary
Platforms
- Software as a Service (SaaS)
+4
AI-powered interview preparation platform with structured learning paths, coding practice, system design, and mock interviews.
+1
The Deadlock Empire is a programming game that teaches locking and concurrency. The skills you need are your intelligence, cunning, perseverance and the will to test yourself against the intricacies of multi-threaded programming in the divine language of C#.
Cost / License
- Free
- Open Source (GPL-2.0)
Platforms
- Online
Czechia
United States