Yes, there are many spin the wheel apps available that allow you to customize the prizes and choose the probability of winning for each prize. Some popular options include:
1. Woobox: This app allows you to create a custom spin to win game with your own branding and prizes. You can also set the probability of winning for each prize.
2. Picktochart: This app allows you to create a custom spin the wheel game by adding your own images, text, and prizes. You can also customize the probability of winning for each prize.
3. Spin Wheel: This app is a simple yet customizable spin the wheel game that allows you to add your own prizes and choose the probability of winning for each one.
4. Spin-a-Sale: This app allows you to create a spinning wheel game with your own prizes and customized probability of winning. It also includes a variety of gamification features to increase engagement.
These apps are easy to use and can be a fun way to engage your users and increase brand awareness.