Memory Debugging

Overview

Memory issues manifest as crashes after prolonged use. Core principle 90% of memory leaks follow 3 patterns (retain cycles, timer/observer leaks, collection growth). Diagnose systematically with Instruments, never guess.

Example Prompts

• "My app crashes after 10-15 minutes with no error messages"
• "Memory jumps from 50MB to 200MB+ on a specific action — leak or cache?"
• "View controllers don't deallocate after dismiss"
• "Timers/observers causing memory leaks — how to verify?"
• "App uses 200MB and I don't know if that's normal"

Red Flags — Memory Leak Likely