Hi there! I see you've already tried clearing the cache and reinstalling the app, but your check-in history still isn't showing up. Let's dig a little deeper to get that sorted.

First, can you confirm if you're logged into the app using the same account you usually use for check-ins? Sometimes login discrepancies can cause data not to sync properly.

If you are logged into the correct account, let's try these steps next:

1. Force Close and Restart the App: Double-click the home button (or swipe up from bottom and pause on newer iPhones) to see all open apps, then swipe the Planet Fitness app up to close it fully. After that, reopen it.

2. Check Your Internet Connection: Make sure your iPhone has a stable internet connection (Wi-Fi or cellular), as the app needs to sync with servers to load your check-in history.

3. Verify App Permissions: Go to Settings > Planet Fitness app and confirm that it has permission to access necessary data like location and background refresh. Sometimes missing permissions can interfere with syncing.

4. Sign Out and Sign Back In: Within the app, try signing out of your account completely and then signing back in. This can trigger a fresh sync of your data.

5. Check for App Updates: Make sure the app is updated to the latest version via the App Store. Sometimes the latest fixes help resolve data loading issues.

If, after these steps, the check-in history still doesn't show, it's possible that there might be a server sync issue or a problem on the backend.

In that case, I recommend reaching out to Planet Fitness mobile app support directly at [email protected]. They can verify your account status and check if there's a larger issue with your check-in records.

Do you want me to guide you step-by-step through any of these checks right now? Let me know!