CALC89SUPPORT
Contact the Calc89 team
A question about a command, something that does not work, a purchase that did not restore, or a feature you miss: write to us. We answer by e-mail.
Before you write
- Purchase not showing up? Open Calc89, go to Settings and tap Restore Purchases while signed in with the account that bought it. On Android, make sure the same Google account is active in Google Play.
- Refunds are handled by the stores, not by us: reportaproblem.apple.com for the App Store, the Google Play refund page for Android.
- How does a command work? The command reference lists every CAS command with syntax, keys and an example, and the FAQ covers exams, Family Sharing and offline use.