Private beta · iOS

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.

  1. 01

    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.

  2. 02

    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.

  3. 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 access

coming to the App Store