Thank you for using KeepCalc.

Thank you for using KeepCalc. This page provides information on how to use the app, frequently asked questions (FAQs), and tips for troubleshooting. If you have any questions, please feel free to contact us.

Section 1: Usage Guide


  • Basics of Calculation
    • We will explain the methods of calculation, how to input formulas, and how to obtain results. (To be published)
  • Managing Calculation History
    • This guide covers how to save your calculation history and how to view and edit it. (To be published)
  • Sharing Results
    • We will explain how to copy calculation results and share them with other apps. (To be published)
  • Tips for Inputting Formulas
    • We provide tips for inputting complex equations that include parentheses. (To be published)

Section 2: Frequently Asked Questions (FAQ)


  1. What iOS version does the app require?
    • An iPhone with iOS 15 or later is required.
  2. How long is the calculation history saved?
    • The most recent 100 entries are saved.
  3. What should I do if I encounter other problems?
    • Click the 'Need Help?' button in the bottom left side menu of the app and send a support email. We will assist you.

The KeepCalc team values your feedback and is constantly working to improve the app.