To resolve the issue of the Applebee's app not functioning on your phone, follow these step-by-step troubleshooting tips:

1. Restart the App
- Close the Applebee's app completely. On most devices, you can do this by swiping it away in the app switcher.
- Reopen the app to see if the problem persists.

2. Check for Updates
- Open the App Store on your device.
- Search for "Applebee's" and check if there’s an update available. If so, download and install it.

3. Reboot Your Device
- Power off your phone completely.
- Wait a moment, then turn it back on. This can help refresh the app and system resources.

4. Check Your Internet Connection
- Verify that you have a stable internet connection, whether it's Wi-Fi or cellular data.
- If you're on Wi-Fi, try switching to cellular data, or vice versa, and see if the app works.

5. Clear App Cache (if applicable)
- Unfortunately, iOS does not have a direct way to clear app cache as Android does, but you can try reinstalling the app to clear data.
- Delete the Applebee's app from your phone and then reinstall it from the App Store.

6. Check for System Updates
- Go to your device Settings > General > Software Update to ensure your phone is running the latest version of iOS.

7. Contact Support
- If none of these steps work, you can reach out to Applebee's customer support for further assistance at 1 (888) 592-7753, available from 8 AM to 7 PM CST, Monday and 8 AM to 5 PM Tuesday through Friday - learn more.

For additional visual assistance, consider watching a quick troubleshooting video specific to the Applebee's app not working - learn more.

Following these steps should help you resolve the issues with the Applebee's app on your phone. If further problems arise, the customer support team at Applebee's can provide more tailored assistance.