Thank you for using Jet Log. The App is available on iOS / macOS / watchOS.
If you have any questions about the app, bug reports, or feature requests, please feel free to contact us at the email address below.
Email: russell2026@outlook.jp
Including “Jet Log Feedback” in the subject line helps us respond more smoothly.
Q. I want to delete my account. A. You can delete it from “Settings” → “Delete Account” inside the app. After deletion, all data — tags, tracking logs, and display settings — is completely erased.
Q. I want to move / sync my data to another device. A. Sign in with the same Apple ID or email address, and the data stored on Firebase is synchronized automatically. You can use the same data on iOS, macOS, or watchOS.
Q. I signed in with Apple ID but cannot change my email address. A. When using Sign in with Apple, your email address is managed by Apple and cannot be changed from inside the app. To change it, go to “Settings” → “Apple ID” → “Sign-In & Security”.
Q. The widget does not appear / does not update. A. On iOS, long-press the Home Screen → tap “+” → select Jet Log. On macOS, add it from Notification Center. On Apple Watch, long-press the watch face → “Edit” → add Jet Log to a complication. If the display is stale, launching the app once will refresh it.
Q. Changes are not reflected on my Apple Watch. A. The Apple Watch app fetches the latest data automatically while it is open (with a delay of a few seconds). If changes are not reflected, reopen the app.
Q. I want to change settings such as chart type or theme. A. From “Settings”, you can change the chart type (line / bar), accent color, theme (light / dark), language, and more. Your changes are synced to all devices on the same account.
Q. About background sound while tracking. A. On iOS / macOS, you can play ambient background sound (BGM) while tracking. Turn it on/off and choose a sound from “Settings” → “BGM”.
Effective date: June 28, 2026