I'm the founder of Challenge Run. I built it because I finished a great run pushing my son in a stroller and wanted to share it not send everyone a spreadsheet of pace data they didn't ask for. Just the moment. And there was no good way to do that.
Challenge Run is a fitness app that makes movement social and competitive. Every run generates a single score that captures how hard you worked — no pace charts, no spreadsheets, just a number your friends can understand at a glance. We're in early access and looking for runners who want to help shape tomorrow's competition platform — people who believe accountability is the best reason to lace up.