If your Book Crawler app has reverted to the trial version, follow these steps to potentially resolve the issue:

1. Check Your Purchase Status: Ensure that you have a valid purchase for the app. Sometimes, the app may misinterpret your account status due to issues with the App Store.

2. Restore Purchases:
- Open the Book Crawler app on your device.
- Navigate to the "Settings" or "Account" section within the app.
- Look for an option labeled "Restore Purchases." This option usually allows the app to recognize any prior purchases made.

3. Reinstall the App: If restoring purchases does not work, try uninstalling and then reinstalling the app.
- Delete the Book Crawler app from your device.
- Go to the App Store and download the app again.
- After reinstallation, follow the restore purchases step again.

4. Update the App: Ensure that your app is the latest version. Updates can fix bugs that might be causing the trial version issue.
- Open the App Store and check for updates.
- If an update for Book Crawler is available, install it.

5. Contact Support: If the above steps do not resolve the issue, reach out to Book Crawler's support team. You can often find contact options directly in the app or on their website.
- Visit their official support page here: FAQs - Book Crawler - [learn more]

6. Consider External Factors: Keep in mind that sometimes app databases may become corrupted. It may be advisable to back up your book collection using any available cloud feature, so you do not lose your data during troubleshooting.

7. Check Fair Use Policy: Review any limitations that may exist concerning the number of devices or installations that can use a single purchase of the app.

If the problem persists after taking these steps, keeping an eye on community forums may also shine a light on any broader issues affecting other users, as app functionalities can change unexpectedly.

If further assistance is needed, please provide additional context to your issue.

It seems that my issue is similar as the others here… The app went back to Trial version …

If your Book Crawler app has reverted to the trial version, you can follow these steps to resolve the issue:

1. Verify Purchase: Start by confirming that you have actually purchased the full version of the app. Sometimes, the app may not correctly recognize your purchase if there’s an issue with your Apple ID or the App Store.

2. Restore Purchases: Go into the app and look for the option to restore purchases. Usually, you can find this in the settings or account section of the app. Tap on "Restore Purchases" to restore your app to its full version.

3. Sign Out and In: Sign out of your Apple ID and then sign back in. This can refresh your account status.
- Open Settings on your device.
- Tap on your name at the top to access your Apple ID settings.
- Scroll down and tap Sign Out.
- After signing out, sign back in and open Book Crawler to see if the issue is resolved.

4. Reinstall the App: If restoring purchases does not work, consider deleting the app and reinstalling it.
- Long press on the Book Crawler app icon until you see the option to delete it.
- Go to the App Store and download the app again.
- After reinstallation, go back to the "Restore Purchases" option in the app.

5. Update the App: Ensure you have the latest version of the app installed, as updates often fix issues such as purchase recognition.
- Open the App Store and check if there’s an update available for Book Crawler. If there is, update the app.

6. Contact Support: If none of the above steps resolve your issue, you should reach out to Book Crawler's customer support for assistance. They may be able to help reset your account status or provide further troubleshooting steps. Here is their support page: FAQs - Book Crawler - [learn more].

7. Account Limitations: If you are receiving a message indicating that you have reached the limit of the trial version, make sure you enter your iTunes password when prompted. This may help validate your purchase again. More information can be found at the following link: Book Crawler Purchase Issues - [learn more].

If the problem continues, consider checking community forums for other users who might have experienced similar issues, as they might share effective solutions or insights that could help.

Troubleshooting Book Crawler license issues

To troubleshoot license issues with the Book Crawler app, follow these steps to resolve the problem effectively:

1. Confirm Your Purchase: Ensure that you have a valid purchase of the app. If there is uncertainty regarding the status of your purchase, verify your Apple ID's purchase history:
- Open the App Store.

- Tap on your profile icon and select "Purchased" to view your purchase history.

2. Restore Your Purchases: If the app is not recognizing your license, the next step is to restore your purchases within the app.

- Launch the Book Crawler app.

- Navigate to the settings or account section and find the "Restore Purchases" option.

- Tap on it to refresh your license status.

3. Update the App: Make sure that you are using the most current version of Book Crawler, as updates often include important fixes.

- Go to the App Store and check for updates for Book Crawler.

- If an update is available, install it and then attempt to restore purchases again.

4. Sign Out and Back In: Sometimes signing out and then back in to your Apple ID can refresh your record.

- Go to Settings on your device.

- Tap on your name at the top, scroll down, and select "Sign Out." Afterward, sign back in and check Book Crawler again.

5. Reinstall the App: If the previous steps don't work, uninstall and reinstall the app.

- Delete Book Crawler from your device.

- Re-download it from the App Store.

- Open the app and use the restore purchases feature again.

6. Check for Known Issues: Occasionally, there might be broad issues related to the app's server or licensing system. Check for user discussions or reports about your problem on community forums, such as Reddit, which can serve as valuable resources - learn more - [learn more].

7. Seek Support: If the issue remains unresolved after following these steps, it’s advisable to contact Book Crawler support directly. They may assist you in troubleshooting your specific licensing issue. Visit their support page here: FAQs - Book Crawler - [learn more].

By following these steps, you should be able to rectify any licensing concerns you might be experiencing with the Book Crawler app. If further detail or assistance is needed, feel free to ask.