Doing some research on these, so as I'm writing this I cannot say if this is any good.

- STEPN (GMT Token) https://www.coingecko.com/en/coins/stepn

- Built on - Solana, Binance Smart Chain, Ethereum Blockchain

( Personally I never used the Solana blocklchain. I personally will opt to utalize this project on the Binance Smart Chain while Ethereum high higher transaction and smart contract fees )

As I'm writing this, it's value is $0.24 It's all time high is $4.11.

While one can buy these tokens, it's also a token we can earn by walking. 

From what I gather, there are a few cons to using this app. It requires we purchase some pricy NFT's that enable us to earn passive income as we walk.

A 3rd party review.

I'm too distracted to find the NFT's and try it, right now. Though I'm sure the NFT's can be found in the app.

There are others, which I'm sure are easier and more free to start out with, though I think this one has a higher payout.