RUHN
A series you play by running.
An AI companion named D.I.A.N.A. narrates a story mission in your ears while you run — and how hard you push decides what she says and how deep you go. Underneath the fiction, RUHN reads your body with real exercise science, every step.
Private beta · coming to the App Store
Most running apps count your steps. RUHN turns them into a story.
As you run, D.I.A.N.A. narrates a mission through your headphones in real time. Run harder and it branches deeper; ease off and it unfolds slower. Either way you move forward — there is no failure state, only depth. The whole time, RUHN measures your run like an instrument, so the further you go, the more it understands you.
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A story that reads your effort
Nine story missions, 12 to 35 minutes each. D.I.A.N.A.'s dialogue branches on how hard you run — walking is valid, sprinting goes deeper. Both move the story and your rank forward.
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Real exercise science, live
VDOT, cardiac drift, training load, heart-rate zones — genuine sports-science formulas cross-referenced run over run and updated as you move. Your body read like a portfolio, not a scoreboard.
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03
Routes that dodge the red lights
Draw a route on a map and RUHN shows you every traffic signal in the way, then gives you turn-by-turn voice navigation — so you keep moving instead of stopping to wait.
Your pace — or your heart rate on a treadmill — places you on the spectrum. Each tier unlocks different dialogue and different depth.
Walking gets you there. Sprinting gets you deeper. Both rank you up.
You're a Hunter. Running isn't exercise — it's access. Your movement generates a signal D.I.A.N.A. reads, and the deeper you push, the less certain her data becomes.
That's not a malfunction. That's the point.
RUHN is in private testing.
Headphones, an iPhone, somewhere to run. That's the whole kit. Want in early?
Request early accesscoming to the App Store