[amadeuspagel]

I'm not sure what you mean. This is an app that stores everything client side. It works offline. It's no different from a native app.

[SpaghettiCthulu]

You're somewhat right. However, I would hesitate to call any website an app. And there certainly is a difference. For one thing I would say an app must be it's own program, even if it just uses Electron or similar.