Codex Usage Monitor

Codex Usage Monitor helps you check the usage limits available to your ChatGPT/Codex account.

See your remaining percentage and reset time at a glance. Add a compact Home screen widget, use a Quick Settings tile for fast refreshes, and receive notifications when your remaining usage changes by the amount you choose.

Features:

- remaining percentage and reset time;
- optional additional usage limits when available;
- 2×1 Home screen widget;
- Quick Settings tile with tap-to-refresh;
- periodic background checks;
- configurable check interval and change alerts;
- secure ChatGPT device authorization;
- encrypted local token storage with Android Keystore;
- no ads or analytics SDKs.

The app connects directly to OpenAI services. It does not use copied browser cookies and does not require an OpenAI API key.

Important: this is an independent, unofficial app. It is not affiliated with, endorsed by, or sponsored by OpenAI. Codex, ChatGPT, and OpenAI are trademarks of their respective owner. The authenticated usage endpoint is not a public stable API and may change.