[deno]

There’s a dedicated API now…

https://developers.google.com/web/fundamentals/app-install-b...

It uses some heuristics:

> Be visited by the user twice, over two separate days during the course of two weeks.

I think apps installed this way should be also limited to some subset of permissions they can request[1]. Otherwise this is almost like a bookmarking mechanism.

[1] They could still explicitly ask for more, on use.

[earenndil]

Google's own site doesn't do this! I haven't visited google sheets on my phone in quite a while (ever?), but when I go to sheets.google.com, I get an ad for the google sheets app, and it's in no way clear that it's possible to use a web interface. Same for google docs.