Run Fun
Now on the Apple App Store

Your form,
translated.

Run Fun is your voice running coach. Film a clip, see your form as a styled video with a biomechanics breakdown, and talk it through with Minna. Optional Watch + sensor alerts when you take her on a run.

Download on the App Store Get help at Wash Park

Works on iPhone 12 or newer. Available on the Apple App Store.

Watch the demo

See Run Fun in action.

90 seconds — record a clip, see your form, talk it through.

How it works

Record. Analyze. Coach.

Three steps from a clip on the trail to a voice conversation about your form.

  1. 01

    Record

    Open the app, film a quick clip of your run. Your phone, on a stand or in a friend's hand. 5 seconds at 120fps is enough.

  2. 02

    Analyze

    The cloud runs pose estimation on every frame and returns a styled video with your foot strike, overstride, and motion trail painted on top of you.

  3. 03

    Coach

    Talk it through with Minna. She's read every frame and every number — ask her what the metrics mean for your body, your goals, your shoes.

What Run Fun does

Run better. Smile bigger. Go farther.

Run Fun pairs visual gait analysis with a voice coach who learns your body over time. Same Minna across every part of the app.

  • Form analysis

    See your form, on video.

    Film a quick clip. Get back a styled video with cadence, stride, ground-contact time, and overstride ratio. See how you land — experiment and learn what works for your body.

  • Shoe fit

    Find the shoe that fits you.

    Side-by-side gait comparison across any shoes you can scan or type in. Built for Fit Experts at running stores, works for any runner deciding between a pair on the rack and the favorites in the closet.

  • Voice coach

    A coach who knows you.

    Minna remembers your runs, your goals, your shoes. Talk to her before, after, or in between — voice or text. She's there for the morning check-in, the post-run debrief, and the questions you didn't know you had.

  • Live cues

    Feedback on your wrist.

    On-device models on your Apple Watch tap you when you heel-strike, drift out of HR zone, or fall off pace. The alerts fire instantly, in the moment they matter.

Denver runners

Fridays at Wash Park.

This Friday, 6:00–7:00 PM — Washington Park, Denver — the sheltered table by the south tennis courts . Free. Drop in anytime in the hour — bring your phone (we’ve got a loaner if you’re on Android) and we’ll get you running with Run Fun and filming your stride. Then from 7 PM, anyone’s welcome to join for a relaxed lap or two around the park. A quick RSVP below helps me know how many to expect.

Can’t make it to the park? Request a 1:1 session instead — in person or remote.

Download Run Fun
RSVP — just so I know how many to expect
Phone:
Here’s what happens
  1. 1
    Get the app + get set up.
    Download Run Fun from the App Store before you come, so we can dive right in. We'll get you going in a minute.
  2. 2
    Film your stride.
    A few seconds mid-run comes back styled, with your cadence, stride, and contact time.
  3. 3
    Talk it through.
    Get feedback on the spot — from Minna and the rest of the crew.
  4. 4
    Group lap at 7.
    After captures, anyone who wants to is welcome to join us for a relaxed lap or two around Wash Park.
Frequently asked

Questions, answered.

  • What devices do I need?

    iPhone 12 or newer running iOS 17+. Apple Watch is optional — if you have a Series 8, Ultra, or newer (watchOS 26+), you also get live form alerts on your wrist. AirPods give Minna a microphone outdoors.

  • Is it free?

    Free at launch. We'll be transparent if that changes — you'll hear about it from us first.

  • Does my data leave my phone?

    Run videos go to our cloud for the pose-analysis pipeline, then come back styled and saved locally. We don't sell data. See the privacy policy for the full picture.

  • What does Minna actually know about me?

    Whatever you tell her, plus the runs and form videos you've recorded in the app. If you connect Apple Health, Strava, or Oura, she can reference recovery and pace context. Disconnect any of it from Settings whenever you want.

  • Is this on Android?

    No — iPhone only at launch. The on-device sensor work (Watch IMU + AirPods + cloud handoff) is built on iOS-specific frameworks. Android is a future thing, not a soon thing.

  • Who's behind Run Fun?

    Built by Rooney Industries LLC in Denver, Colorado — runners, an ML engineer, and a lot of testers from the local trail community. Reach Colin at colin@rooneytech.com.

Founding runners

You’re early — and that shapes everything.

Run Fun is new. Every run you film, every talk with Minna, every note you send is shaping what it becomes. Download it, put it through its paces, and tell us what you think — colin@rooneytech.com.

Download Run Fun

Want the occasional update? Drop your email — we’ll share what’s new and what your feedback shaped. No spam.

See our privacy policy for details on how we handle your email.