The app interface is, to be generous, very minimalist. It's basically just a mosaic with the latest photos uploaded to Retrica, and you can enlarge them by tapping on them. That's it. What's more, each time you tap a photo on the mosaic, you have to close a fullscreen ad. Due to the excessive ads in this app, using it is a pretty frustrating experience.
Search Retrica Selfie Photos is not a recommendable app. The appeal of looking at other people's pictures is understandable to an extent, but the app itself doesn't work very well and is full of ads.