After a couple hours it made me redownload stuff for the app to be able to use it again.

Says it wil write to NTSF. Had to download an additional driver first. Copy/write started to the NTFS drive. The it stoped part way through. Now I have a grey folder. The Fix Grey files ran, but no improvement. Every attempt to restart the copy and merge fails. The NTFS disk will NOT dismount (fails to dismount) and it takes a forced reboot of the MBP to get control. The disk icon does not show in the finder or on the desktop like the other drives. Remounting the drive gets me in the same unusable state. Will not finish the copy and will not dismount, the copy tries to start but errors like I don't have write access. very very frustrating.

I don't think the "FREE" part of this program does anything useful although your mileage might vary. Unfortunately I am unable to use this product. It launches and will not quit. When I terminate the process it will restart, requires some additional software supposedly downloadable via an built-in link. I'm not going there and because the app requires a force quit I don't think it meets minimum quality standards for something that the App Store would offer. It did discover my two NTFS volumes so if it ever works correctly I might give it another try.

Worked amazingly well a few years ago, but no longer effective at writing to NTFS volumes.I paid for upgrade to VIP plan hoping that would fix it and still no result. The supplied instructions do nat match what I see on my computer and are incorrect. Perhaps now out of date. Instructions ask to disable every MacOS security measure to get the app to work. The process is very tedious, but I wasn’t going there anyway. It looks like asking for trouble.