Good news. The new data provider I’m migrating to tracks a bunch of external links to games from GOG, Origin, MS, PSN, Steam, etc. that I will be able to use to enable this feature.sigmund3d4c9 commented
Has this idea been abandoned or is it being worked on?
The site has been designed to work on mobile devices—try opening the site on your phone, for example. You can even pin the site to your home screen! However, we know that many people expect to find an app on the store and we plan to release apps for iOS, Android, and Windows 10. We’re also planning to release a desktop version of KTOMG but all this requires some extra work to make offline browsing possible. Thanks for the suggestion!
You can now add private notes about progress for a game if you like. However, we plan to formally support recording progress in the future.