recall.
Never forget your solved DSA questions.
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recall. - Never forget your solved DSA questions.

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Automated spaced repetition queue for LeetCode, Codeforces, GFG, HackerRank, and CodeChef. Never forget what you solved. Recall brings old problems back at the right time, helping you turn daily problem solving into long-term retention.

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I built Recall because I kept running into the same problem with my DSA practice: I was solving problems consistently, but forgetting a lot of them a few weeks later. I tried tracking problems in Notion and revisiting them manually, but deciding what to revise and when became another thing to manage. So I built Recall to handle that part with spaced repetition. You add the problems you solve, and Recall builds the revision queue for you. It started as something I wanted for my own 200-day LeetCode streak, and eventually became a product I wanted to share with other people preparing for coding interviews. Would love to hear what you think, especially what you'd change or add.