Social media apps like snapchat, instagram, viber, etc notify you if someone takes a screenshot of your profile, chat, conversation, story, etc.

Can apps tell if you screenshot?

You might have wondered how apps like Snapchat and Instagram can detect screenshots as soon as you take one. ... Basically, when the user is using the app we will check the images in their device and see if a new image has been added in the “Screenshots” folder. That's it!

Do dating apps notify screenshots?

Tinder does not notify users of screenshots taken by others, unlike apps like Snapchat.