Hi there! I understand you're having trouble with the iCruise app not showing destinations on your iPad and iPhone. To help you better, could you tell me if this issue started recently or has it been ongoing? Also, are you connected to Wi-Fi or cellular data when this happens?

Meanwhile, here are some initial steps we can try on your devices running OS X 10.15.7:

1. Check Internet Connection: Ensure your iPad and iPhone are connected to a stable Wi-Fi or cellular network, as destinations often require online data.

2. Update the App: Open the App Store, go to your Purchased or Updates section, and see if there's an update available for the Cruise Finder by iCruise.com app. Sometimes outdated apps can cause display problems.

3. Restart the App: Close the app completely (swipe it away from the app switcher) and reopen it.

4. Reboot Your Device: Sometimes a simple restart of your iPad and iPhone can clear temporary glitches.

5. Reinstall the App: If the above steps don't help, delete the Cruise Finder app and reinstall it from the App Store. Some users have found this resolves issues with cruise listings not appearing4.

6. Check for iOS Updates: While your Mac OS is 10.15.7, confirm that your iPad and iPhone iOS versions are also up-to-date, as app compatibility improves with newer system versions.

If you have already tried any of the above, please let me know which ones so we don't repeat steps. Also, are you logged into the app with your account properly? Sometimes session issues can prevent content from loading.

Let me know how it goes or if you want me to guide you through any of these steps!