Hello, you should know that BitLocker is not available on non-Windows platforms natively.
So you need a third-party app to read the files on an iPad, iPhone, or macOS device. I am sorry there are no apps for iPads to unlock the drive that is encrypted by BitLocker.
If you need to read a USB drive on multiple devices that are not all Windows, you may want to consider a BitLocker alternative. You are suggested to apply iBoysoft BitLocker for Mac to unlock the files and then copy or transfer them on your iPad.
- Free download, install, and launch it.
- Insert the drive into your Mac.
- Click Open icon and choose File manager.
- Enter the password and click Unlock.
- After opening, it will list files stored in your BitLocker drive.
- Copy or transfer them to your iPad.
Hope you can use the files on iPad finally.