Apps similar to CodeSubmit include exercism, which is open source with a free version. Other options are LeetCode, HackerRank, Codewars and Project Euler. You're spoiled for choice with Code Learning Services like CodeSubmit: we list more than 50 alternatives for the web, Windows, Mac, Linux and iPhone.
Oto_code is an AI-driven new age technical assessment platform helping organizations make right hiring decisions by evaluating desired technical skills and looking beyond traditional input and output test cases.
Kandio is an online platform that has a growing library of exams where you can choose which exams to give to your candidates applying for your job opening.
