Hello! I understand that you’re having trouble downloading the UK ETA app on your Android phone from the Play Store, with a message indicating that the app version is not compatible. Let’s work on this together!

Here are a few things we can check and try:

1. Check Android Version: You mentioned you're using Android OS version 10. The UK ETA app may have specific requirements. Can you confirm that your device is fully updated to the latest version of Android for your device? Sometimes upgrading your device can resolve compatibility issues.

2. Device Compatibility: The UK ETA app may not support all Android devices or configurations. I recommend checking the app's Play Store page (UK ETA - Apps on Google Play) for the compatibility information to ensure your device is listed.

3. Clear Play Store Cache:
- Open your Settings app.
- Go to Apps or Application Manager.
- Find and tap on Google Play Store.
- Tap Storage and then select Clear Cache.
- Restart the Play Store and try downloading the app again.

4. Check Region Restrictions: Sometimes, apps are limited based on geographical locations. If you're not in the UK, that could be an issue. Are you in the UK currently? If not, you might need to check if the app is available for download in your region.

5. Trying a Different Network: Occasionally, network configurations can affect downloads. If possible, switch from Wi-Fi to mobile data, or try connecting to a different Wi-Fi network.

Let me know how these steps go, and if the issue persists, we can look into more detailed troubleshooting together!