[Zarel]

For me, the big thing I can't do with a web app is work around the keyboard. If I try to write a chat app, the keyboard will often cover the text box, and there's often no way to prevent this. There's no APIs for "tell me where the on-screen keyboard is so I can move the app UI out of the way" or even "automatically resize the window to exclude the keyboard".

The options for showing a numpad are also very limited. <input type="number"> exists, but it doesn't work for things that aren't numbers, like codes starting with 0.