A private, competitive training app for people who'd rather be playing the sport than thinking about the gym. It decides today's session for you, keeps a scoreboard only you see, and asks for one thing: go again.
Three decisions, each backed by the research in the brief.
Open it and today's session is already chosen — no menu, no planning, no "what should I even do." The single biggest barrier for beginners is not knowing where to start; Otra removes the decision entirely, the way a daily puzzle hands you the puzzle.
The chain counts a 10-second daily check-in, not the workout — so a missed gym day never breaks it. One scarce freeze covers real life. Loss aversion keeps you coming back; scarce forgiveness keeps it from becoming guilt.
PRs, wins, the week you went 3-for-3 — competitive fuel, zero audience. Built for someone who likes winning but hates being watched. And every number ladders up to the real prize: winning the sport you actually came to play.
Overhead athletes develop posterior shoulder tightness that's a documented injury risk — and hip-flexor length limits your first step. Two named sport stretches at the end of every session target exactly those. Not "cool-down wellness." Maintenance for the machine that wins at the net.
A teammate who keeps score — never a cheerleader, never the owl.