You can turn off the Caller ID feature at any time without deleting the app. You will still be able to perform a phone number check manually.

Disabling Caller ID in the NumBuster app

1. Tap Caller ID Mode on the NumBuster home screen.

2. Swipe through the carousel to find the Disable Caller ID screen.

3. Tap Select to confirm.

Disabling via device settings

1. Open your device settings and find and go to section Apps.
2. Find and go to section Default apps.
3. Tap Phone app and select the system default.