We made similar thing i a bit different and easy to use way: https://www.cryptoground.com/what-if https://www.cryptoground.com/what-if You can choose the coin

We made similar thing i a bit different and easy to use way: https://www.cryptoground.com/what-if https://www.cryptoground.com/what-if You can choose the coin you wish and historical date you want to check it ROI. We had got featured on PH for the same :D Some of the top currencies ROI wise: https://ph-files.imgix.net/23c6487b-8e58-4d54-b2d3-572051dae9b1 https://ph-files.imgix.net/23c6487b-8e58-4d54-b2d3-572051dae... Do provide your comments & feedback :)