Circle Calculator Support

For the fastest resolution, include the app version, device model, operating-system version, calculator/tool name, and the steps that reproduce the problem. Do not send confidential customer measurements or files.

Purchase help

Use Restore Purchases in Settings first. Subscriptions are managed by the App Store or Google Play account used for the original purchase.

Calculation or export issue

Describe the units, tool, expected behavior, and whether the problem occurs offline. If sharing sample measurements, use non-confidential example values.

Privacy

Read the Privacy Policy or open Privacy Choices.

Contact

Use the developer contact shown on the official App Store or Google Play listing so you always reach the current support channel.