Support
HistoryCalc is an iPhone calculator with an on-device history tape and a discount helper. There is no cloud account for your calculations.
Common questions
- History disappeared after reinstall. Tape is stored only on this iPhone. Uninstalling removes it. We cannot restore it from the cloud.
- Unlock / restore. Settings → Restore Purchase (use the same Apple ID that bought the one-time unlock). Sign in with Apple is only for buying or restoring.
- Save to Photos was denied. iPhone Settings → HistoryCalc → Photos → Add Photos Only (or Allow).
- Delete sign-in. Settings → Account in the app.
Contact
Email icoollike@icloud.com. Please mention your iOS version and what you tapped.