Sound Calculator iOS Last updated: June 19, 2026

Sound Calculator Support

If you have questions, bug reports, feedback, or requests about Sound Calculator, please check the information on this page.

Basic Usage

  • Number keys: Enter numbers.
  • +, -, x, /: Perform basic arithmetic operations.
  • =: Show the calculation result.
  • AC: Clear the current input.
  • CE and arrow: Remove part of the current input.
  • TYPE A/B/C: Switch the key sound type. TYPE B/C are available with Pro.

Information to Include in Bug Reports

When reporting a bug, including the following information helps us investigate more smoothly.

  • Your iPhone model
  • Your iOS version
  • The app version
  • What happened
  • Steps to reproduce the issue, if possible

FAQ

I cannot hear any sound.

Please check your iPhone volume, silent mode, and connected Bluetooth devices. The app does not have an in-app sound on/off setting.

Are calculations saved?

No. Sound Calculator does not include a history feature and does not send calculation contents to CAEN servers.

Do I need to create an account?

No. Sound Calculator can be used without login or account registration.

Are there ads or subscriptions?

The free version may display a bottom banner ad. There is no subscription. Pro is a one-time purchase.

What does Pro include?

Pro removes ads and unlocks the additional TYPE B / TYPE C sound types.

Contact

For questions about Sound Calculator, please contact CAEN Inc. by email.

[email protected]