On: Whatruns: Identify technologies used on any websit...

[myth_drannon]

or https://stackshare.io/

[nmbr213 → myth_drannon]

or https://wappalyzer.com/

[mkagenius → nmbr213]

or for android apps : https://android.fallible.co/builtwith/zendesk/1

[michaelmior → myth_drannon]

My understanding is that StackShare doesn't detect the technologies that are used but simply displays information that has been manually recorded.

Edit: Looks like I'm probably wrong since I see they have a tool named "Stack Scanner"