Hi there! I see you're having trouble logging into the TripIt app on your Android device. To help you better, could you please tell me if you are seeing any error messages when you try to log in? Also, are you logging in with your email and password, or using a social login like Google or Facebook?

Meanwhile, here’s a step-by-step approach to try:

1. Check your Internet connection: Make sure your device is connected to a stable network—WiFi or mobile data.

2. Verify your login details: Confirm that your email and password are entered correctly. If you are unsure, you might want to reset your password by selecting the “Forgot Password?” option.

3. Clear the app cache: Sometimes, cached data can cause issues.
- Go to Settings > Apps > TripIt > Storage > Clear Cache.

4. Force stop and restart the app:
- Settings > Apps > TripIt > Force Stop, then reopen the app.

5. Update or reinstall the app:
- Check the Google Play Store for any available updates.
- If the app is up to date, try uninstalling and reinstalling it.

6. Try logging in via the TripIt website on your browser to see if the issue is app-specific or account-related.

If you’re still unable to log in after these steps, let me know. We can then look into more advanced options like checking for app permissions, or I can help you reach TripIt support.

Are you able to try these steps and share what happens?