How it works
Facts from the apps' own pages with a date, tools that run on your device.
The facts
What this site says about an app comes from that app's own help pages, FAQ or press room, read on the date shown, and is told in our words. Where an app states nothing, we say so and never fill the gap with a guess. Tinder states no photo size, so the crop sizes here are our suggestion.
The tools
The cropper and the check run in your browser. A small open face detector (YuNet, MIT licence) finds your face on your own device. The only file the page downloads is that detector, from this site; the site tells your browser to refuse connections to any other address, so your photo cannot leave your device. The check never gives a score for looks.
Who makes it
Made by Dewshot, a natural photo retouch. Not connected to Tinder or Match Group. The same tools also run at profilepiccheck.click and profilepicsize.click.