Roulette Solveder - spin bottl is a free Android app developed by Kraist that aims to help users make decisions. The app allows users to create their own roulette with answer choices. It offers games like Twister, Slime Challenge, and Spin the Bottle along with a range of roulettes like "What to See in Cinema," "What to Eat for Breakfast," and "What to Gift."

The app comes with four pointer options - two bottles and two arrows - and allows users to create roulettes manually. Users can save the last fallen options and share them with friends. The app is easy to use and can help users make decisions quickly and completely by accident. The app is available for free and can be downloaded from the Google Play Store.