To ensure smooth functioning of the CallHippo app on iPhone, please check the following before beginning any troubleshooting:

  1. Do not use a VPN – VPNs may disrupt call connectivity and app performance.

  2. Disable Low Power Mode – This restricts background activity and may prevent the app from receiving calls or notifications.

  3. Update the CallHippo app – Install the latest version from the App Store.

  4. Keep your iOS version up to date – An Outdated iOS may cause compatibility issues.

  5. Allow all permissions – Especially microphone, notifications, and background app refresh.

If issues still persist, follow the specific instructions below based on the problem you're facing.

1. Login Issues

If you're unable to log in to the CallHippo app:

  • Make sure you’re using the correct email and password

  • If needed, tap Forgot Password and follow the reset instructions sent to your email

  • After resetting, fully close and reopen the app

  • Ensure that you're connected to a stable network (Wi-Fi or mobile data)

  • If Face ID or Touch ID is enabled for login, make sure biometric permissions are active in device settings

  • Still facing issues? Uninstall and reinstall the app from the App Store

2. Outgoing Call Issues

If outgoing calls aren't going through or are dropping:

  • Go to Settings > CallHippo > Microphone, and make sure it’s enabled

  • Open the app and enter the number with the correct country code (e.g., +44 or +1)

  • Switch between Wi-Fi and mobile data to test for network issues

  • Ensure you're not using a VPN or firewall

  • If you’re using AirPods or Bluetooth, check that the audio is not being routed incorrectly

  • Restart your iPhone and try again

  • Check the App Store for updates to CallHippo, and install if available

3. Incoming Call Issues

If incoming calls aren’t ringing or are delayed:

  • Go to Settings > Notifications > CallHippo, and ensure Allow Notifications is turned on

  • Enable SoundsBanners, and Lock Screen notifications

  • Go to Settings > CallHippo, and enable Background App Refresh

  • Disable Low Power Mode: Settings > Battery > toggle off

  • Make sure Focus mode (Do Not Disturb) is not active:

    • Open Control Center > check if Focus is on → Turn it off

    • Or go to Settings > Focus > Do Not Disturb and remove CallHippo from blocked apps

  • Allow CallHippo under Settings > Cellular if restricted

  • Restart your device and open the app to ensure it stays active in the background

4. App Crashing or Freezing

If the app crashes at launch or during calls:

  • Force close the app by swiping up from the App Switcher

  • Open Settings > General > iPhone Storage > CallHippo, and offload the app, then reinstall

  • Check for any pending app or iOS updates

  • Restart your iPhone to clear background processes

  • If storage is low, free up space and then try again

  • If the problem continues, uninstall and reinstall the app


5. Auto-Logout or Session Timeout

If the app logs you out automatically:

  • Make sure you're not logged in on another iOS or Android device using the same account

    • CallHippo accounts should only be active on one device at a time

  • Go to Settings > CallHippo, and ensure Background App Refresh is enabled

  • Disable Low Power Mode, as it may cause the app to be suspended in the background

  • Restart your iPhone to refresh system memory

  • Make sure app updates are installed from the App Store

6. Final Troubleshooting Checklist

If issues are still unresolved, check the following:

  • Restart your iPhone

  • Ensure microphone accessnotifications, and background app refresh are all enabled for CallHippo

  • Disable VPN, firewall apps, or any privacy features that may block VoIP traffic

  • Confirm you are not using Screen Time restrictions or App Limits that affect CallHippo

  • Switch from Wi-Fi to mobile data or vice versa to rule out connection problems

  • Avoid force-closing the app regularly—it may affect background services

  • Reinstall the CallHippo iOS application from the App Store


I hope this helps. If you still face any queries, please feel free to reach out at [email protected]