Crash in MacOS High Sierra and restoring purchase

Hello I bought Marginenote 3 long time ago for iPad and for MacOS Then I did not use it on mac and when I installed it on my old mac mini with High Sierra it was not working. Now the problem is solved, but the app asks me to buy full version.

Hello

For the crush problem, just update it to 3.7.5 and it will be compatible with high Sierra.

For the restore purchase problem, please make sure you log in the same account.

Kind Regards,
MarginNote-QSD
Support Team