I used the initial web-version of Glossika back when rare languages were free. I quite liked it. The past week I played with the new changes, and the typing doesn't bother me so much, though I do think there needs to be a listening-only version as well. The main reason I won't continue to use Glossika online is the price. 30 EUR a month is just too expensive for me personally, especially considering there is no mobile app or offline mode.
Later I ended up picking up Glossika F1-F3 German books+audio, which I am working through now. The "Glossika Scheduler" app for Android is a great help for keeping track of what I should be listening to. As an MP3 player I'm using WorkAudioBook, which is fantastic.
To be honest even if Glossika online was cheaper, I might still not use it. Between work and other hobbies, I spend a lot of time in front of a screen, so I'm always looking for ways to reduce screen time. Old paper glossika is a nice bit of my routine that I can do merely with earphones, a notebook, and the book.
That said if Glossika had an offline, hands-free feature (like MosaLingua does iirc), then I could definitely see myself using it while commuting, biking, etc.
I've been using the old Glossika courses for a year or two via my Natibo app
You make "Glossika Scheduler" too right? Natibo isn't in the app store, do you have an APK available or any plans to publish it?