StepsInvesting is an auto-investment platform that uses your daily steps to automate your investments. You can set up your investment rate and connect your fitness tracker to the app. Simply start walking and staying active—your daily steps will drive your investments. For example, if your investment rate is $1 per 1,000 steps and you walk 5,000 steps in a day, you'll invest $5 for that day.

iOS app: https://apps.apple.com/app/stepsinvesting-walk-invest/id6535649695

Android app: https://play.google.com/store/apps/details?id=com.stepsinvesting

I built the app using React Native with NodeJS/MeteorJS backend, and it’s available on both iOS and Android.