Hi there! I see you mentioned the BorrowBox app is "not working." Could you share a bit more about what's happening? For example, is the app not opening, crashing, failing to download books, or something else? That way, I can guide you through the best solution specific to your situation on your iPhone with iOS 18.7.1.

Meanwhile, here are some general steps we can try for BorrowBox app issues on iOS:

1. Check your internet connection: A stable Wi-Fi or cellular data connection is important for BorrowBox to work smoothly.

2. Ensure your device has enough storage: If your iPhone is low on free space, it could prevent downloads or proper app functioning.

3. Update the BorrowBox app: Go to the App Store, check for any available updates for BorrowBox, and install them to avoid compatibility problems.

4. Restart your iPhone: Sometimes a simple reboot can clear minor glitches.

5. Clear app cache and reset the app: While iOS doesn’t have a direct cache clear option, you can try deleting the app and reinstalling it. Make sure any downloaded books are backed up or re-downloadable.

6. Login and Network Check: Open the app and verify you are logged in properly. Sometimes logging out and logging back in helps.

If you’ve tried any of these already, let me know which ones, and we can try more specific troubleshooting! Are you able to describe exactly what you see when you try to use BorrowBox?