ZhuanZhuanZhuanPan AKA ZZZP (转转转盘) is an Android application where you can use a "wheel of fortune" to make a decision. For instance, you can type in names several different restaurants if you are not sure which one to choose for a lunch. Manually slide the screen to make the wheel run. Also, your options will be saved for your next use.
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You may also find it on 腾讯应用宝 and other Android app stores.
Unfortunately, zzzp is only available on Android right now. We are working on the vesion for WeChat WeApp.
MIT