The Calculator app is one of the most commonly used features on the iPhone, whether you're performing quick calculations or handling more complex math on the go. However, it can be frustrating when the Calculator app is not working on an iPhone. If youâre experiencing issues where the iPhone calculator app isnât functioning properly or isnât opening at all, this guide will help you fix the calculator app not working on your iPhone by offering practical troubleshooting steps.
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How to Fix Calculator App Not Working on iPhone?
Follow this comprehensive guide to troubleshoot and fix the Calculator app on your iPhone.
1. Restart Your iPhone
A quick restart is usually able to solve minor software issues. Below is how one can initiate the iPhone restart:
- For iPhones with Face ID: Press and hold the side and volume up button until the power off slider appears. Drag this slider to turn off your iPhone. After the device goes off, press and hold the side button again until an Apple logo appears.
- For iPhones with a Home Button: Power off the top part of its sides until they boil to the point where this beautiful fruit symbol finally emerges from nowhere.

2. Update iOS
Having an old version of Apple, the software might cause a malfunctioning app problem. To update your iOS:
- Go to Settings.
- Tap General.
- Click on Software Update.
- If updates are displayed there, click on Download and Install.

3. Close and Reopen the Calculator App
Sometimes, just exiting and then coming back into an app can do wonders, too:
- iPhone App Switcher is accessed by either swiping up from the Dock (for Home Button iPhones) or double-clicking the home button (which has Face ID models). Swipe up from the app sync option if you are running an iPhone with a Home button. When youâre done, tap on the home screen, which will take you back to your desktop.
- Find the Calculator app and swipe it up to close it.
- Open the Calculator app again from your home screen.
4. Check for App Restrictions
Make sure that app restrictions havenât been imposed on the Calculator app:
- Launch Settings.
- Tap Screen Time.
- Choose Content & Privacy Restrictions.
- Click on Allowed Apps to confirm that Calculator is among the apps allowed.
- Reset All Settings
If none of these solutions works, perhaps resetting all settings would help. Since this does not delete any data but resets things like Wi-Fi passwords and wallpapers :
- First, you should access your settings menu.
- Go straight to General settings
- Scroll down to Reset
- Select Reset All Settings and enter your passcode if required.
5. Reinstall the Calculator App
If the problem continues, reinstall the Calculator app:
- Press and hold the Calculator app until it wiggles.
- The app icon will show an x at the corner.
- Open the App Store.
- Search for Calculator and download it.

6. Contact Apple Support
If the above still does not help get the Calculator app up and running, there might be an underlying issue that needs further attention from Apple Support services or an Apple store.
Conclusion
Fixing the Calculator app not working on iPhone is essential for ensuring you have access to quick calculations whenever you need them. By following the troubleshooting steps outlined in this guide, you can resolve the issue and get your iPhone calculator app back in working order. Regularly updating your iOS and keeping your device in good condition can also help prevent such problems in the future.