Remaining usage is the primary number, with used amount kept secondary.
iOS app and Home Screen widget
Codex Meter
Track your Codex GPT-5.5 5-hour and weekly usage windows from a small, direct iPhone app and widget.
Built for quick checks
Usage at a glance, without opening ChatGPT.
Weekly quota is shown alongside the shorter window so you can pace work.
Refresh from the app or the widget, with scheduled WidgetKit timeline updates.
Private by default
Your Codex account signs in on your device.
Codex Meter uses the Codex sign-in flow and stores refreshable credentials in the iOS Keychain. The widget reads those shared credentials locally and calls the usage endpoint directly.
No developer backend
The app does not send your token or usage history to a server operated by Codex Meter.
No ads or analytics SDK
The app is a focused utility for displaying your own usage numbers.
Local cache
Recent usage snapshots are stored on device so the widget can stay useful between refreshes.