If you’re experiencing issues with stuck downloads in the BorrowBox app on your iPad while seeing a whirling icon on your iPhone, follow these steps to troubleshoot and resolve the issue:

1. Check Internet Connection: Ensure that your iPad and iPhone are connected to a reliable Wi-Fi network. A weak or unstable connection can cause issues with downloading content. You can test this by trying to browse a website or stream a video.

2. Restart the App:
- Close the BorrowBox app completely on your iPad.
- On your iPhone, do the same.
- Reopen the app on both devices and see if the download resumes.

3. Force Quit the Apps:
- On your iPad, swipe up from the bottom of the screen and pause before swiping right. Find the BorrowBox app and swipe up to close it.
- On your iPhone, do the same to close the app.
- This can often clear glitches that prevent downloads from completing properly - learn more.

4. Restart Your Devices:
- Restart both your iPad and iPhone. This can reset the system's temporary settings and may resolve download issues.
- To restart your iPad, press and hold the top button until the power off slider appears.
- Do the same for your iPhone.

5. Check for Updates:
- Ensure the BorrowBox app is updated to the latest version on both devices. Open the App Store, go to Updates, and install any available updates for BorrowBox.
- Additionally, check for iOS updates by going to Settings > General > Software Update.

6. Reinstall the BorrowBox App:
- If the problem persists, consider uninstalling and reinstalling the BorrowBox app on your devices.
- Tap and hold the BorrowBox app icon until it shakes, then tap the 'X' to delete it. Reinstall it from the App Store.

7. Check Storage:
- Ensure there is adequate storage space on both the iPad and iPhone. Go to Settings > General > iPhone Storage or iPad Storage to check available space.
- If storage is low, consider deleting unused apps or files to free up space.

8. Contact Support:
- If none of these steps resolve the issue, consider reaching out to BorrowBox support for more targeted assistance or clarification regarding app functionality or potential known issues.

Follow this sequence of troubleshooting steps to alleviate the persistent download issue you’re encountering in the BorrowBox app on your iPad and iPhone.