No manual entries of cryptos & app is free even after connecting 2 exchanges + you'll get an overview of your other investments and cashflow.

Not any particular css framework, just React.js . And I'm aiming for making it usable on mobile for the official release but if not, it's certainly in the plans.

Thanks for the comments, vertical scroll is already there and auto language detection is in the plans

Thanks for the feedback and concerning links, yes you can