Bitwise: Coding Interviews
An interview-preparation app with interactive coding puzzles, step-by-step reasoning, spaced review, and multiple programming languages.
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Coding interview practice apps
Practice programming problems commonly used in technical interviews. Look for timed practice, sample test cases, and explanations that show how a solution works after you have tried the problem yourself.
CodeStreak: Coding Interview
Practice data structures and algorithms with short lessons, flashcards, quizzes, and visualizers.
Coding Interview — Algo Mind
An algorithm-interview learning app with animated code walkthroughs, practice problems, and guided study sessions.
An effective practice session includes explaining a solution and checking how it behaves on edge cases.
How to choose
- Try an unfamiliar problem and inspect the supported languages, feedback, and ability to add your own test cases.
Frequently asked questions
Can I review a solution after a timed session?
Look for saved submissions and explanations so you can revisit your approach after the timer ends.