codebrr: Python interview prep
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About this app
Practice Python interviews the way you'll actually be judged: by writing real code against real tests — with an AI coach that steps in the moment a run fails.
THE AI COACH (Pro)
Fail a test and the coach reads your actual code and the failing test, then leaves a hint pinned to the exact line that's wrong. Concept first, approach next, never the answer — you still do the solving. Keep iterating and it goes deeper: three levels, zero spoilers.
2,400+ PROBLEMS, RUNNER ON-DEVICE
A real Python runner built in — your code executes on your phone, instantly, even offline. Arrays, DP, graphs, concurrency, SQL, pandas, debugging drills and more.
13 GUIDED COURSES
Python internals, concurrency, SQL for engineers, pandas, every DSA pattern, plus Amazon, Google and Meta interview tracks. Lesson by lesson, proven on real problems. First chapter free.
BUILT TO KEEP YOU GOING
Daily streaks with freezes, weekly leaderboard, spaced-repetition review of what you got wrong, and a 5-minute sprint mode for busy days.
FAIR PRICING
The free tier is genuinely useful. Pro is $9/month — coach on every failed run, all problems, all courses, reference solutions.
Your progress syncs with codebrr.com — one account, same Pro, phone and web.
THE AI COACH (Pro)
Fail a test and the coach reads your actual code and the failing test, then leaves a hint pinned to the exact line that's wrong. Concept first, approach next, never the answer — you still do the solving. Keep iterating and it goes deeper: three levels, zero spoilers.
2,400+ PROBLEMS, RUNNER ON-DEVICE
A real Python runner built in — your code executes on your phone, instantly, even offline. Arrays, DP, graphs, concurrency, SQL, pandas, debugging drills and more.
13 GUIDED COURSES
Python internals, concurrency, SQL for engineers, pandas, every DSA pattern, plus Amazon, Google and Meta interview tracks. Lesson by lesson, proven on real problems. First chapter free.
BUILT TO KEEP YOU GOING
Daily streaks with freezes, weekly leaderboard, spaced-repetition review of what you got wrong, and a 5-minute sprint mode for busy days.
FAIR PRICING
The free tier is genuinely useful. Pro is $9/month — coach on every failed run, all problems, all courses, reference solutions.
Your progress syncs with codebrr.com — one account, same Pro, phone and web.
Python interview prep with an AI coach that reads your failing code.
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What’s new
More room for code: the Run/Submit bar is tighter and the workspace fills the screen exactly. Ad space is reserved only when an ad has actually loaded.
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About the developer
Jay Pathak
me@jpathak.com
39905 Seal Dr
Newark, CA 94560-5590
United States
