On The Go Girls’s Dirty Fingers is a simple app that allows users to control a bikini-clad woman as she cleans steam off of your smartphone’s screen. Wherever you touch the screen, the model will wipe away a bit of steam, slowly revealing her and her outfit.
The app received strong sales when it was initially released and at one point was one of the best-selling apps in Apple’s App Store. But complaints from users who objected to the content called on Apple to remove the app and the company eventually caved. Android users, however, can still download the app.