Imagine building a project with someone. You are planning on monetizing this project by accepting payments in cryptocurrency. You would want to distribute the earnings fairly in between yourselves. Partnerly.co helps you do this. It is an app that helps you create a smart contract on the blockchain that can distribute the collected payments between two (or more) parties in a predetermined split ratio.
I wanted to build Partnerly to learn more about Solidity and Smart Contracts. I have also shared my learnings at www.partnerly.co/learn.