Having trouble with the app or have a question? We are here to help.
How do I run my code? Tap the Run button at the bottom of the code editor. Your code will be compiled and executed against the challenge's test cases. Results appear in the console below the editor.
How do AI hints work? On any challenge, tap the hint button to request an AI-generated suggestion. The hint analyzes your current code and the problem requirements to give you a nudge in the right direction without revealing the full solution. Each hint is automatically saved to your Notes.
What programming languages are supported? The app currently supports Swift and Python, with more languages planned for future updates.
How does the free tier work? You get free access to the first set of challenges in Level 1, up to 30 compiler runs, and up to 22 AI hints. A subscription unlocks all levels, unlimited compiler runs, and unlimited hints.
How do I manage or cancel my subscription? Subscriptions are managed through your Apple ID. Go to Settings > your name > Subscriptions on your iPhone to view, change, or cancel your subscription.
How do I delete my account? Contact us at the email below and we will process your account deletion within 30 days.
My code runs fine locally but fails in the app. Why? The in-app compiler uses Judge0, which runs your code in a sandboxed environment. Make sure your solution reads input and produces output in the format the challenge expects. Check the test case descriptions in the challenge drawer for details.
For bug reports, feature requests, or any other questions:
We typically respond within 48 hours.