A few answers before you write.
These instructions describe the fictional demo app.
A timer ran too long
Open the entry in the week view, edit its end time and check the preview. Save after the duration matches the work you did.
A device stopped syncing
Check that both devices have a connection and still appear in the paired-device list. Do not delete either database while troubleshooting. Export a local backup and contact us with the device versions.
An invoice total looks wrong
Check the client currency, project rate and billable flags. Rates on existing drafts stay as they were when the draft was created. Edit the draft explicitly if the rate changed.
Can I track time offline?
Yes. Timers and entries are stored locally. Optional sync resumes when the device reconnects.
Does Stint send the invoice?
No. It exports a PDF draft. Review it and send it through your existing billing process.
How do I move to a new device?
Export a backup first, then pair the new device through Sync. Check the records before removing the old device.
Where is my CSV?
In the folder you selected in the system file picker. Stint does not upload exports for you.