[wycy]

This seems quite hidden. Googling "google appsheets" results in "did you mean 'google sheets'?" and showing only results for google sheets unless you specifically then request AppSheets.

It sounds cool, but I'd hate to rely on it since Google will probably shut it down.

[iLoveOncall]

Seems to be because the actual name is AppSheet and not "Google AppSheet" (even though it is mentioned in this way on their website in some places).

Requesting just "AppSheet" gives the right result.

[rqtwteye]

I am not using them so it should be ok for now. Once I start using them it’s almost guaranteed that they will shut down that service.