Multi-sport AI coaching for iOS

One coach. Every sport you do.

Arni reads your runs, rides, swims and rows straight from Apple Health, folds in your gym sessions, and coaches the whole picture — one readiness number, honest advice, zero guesswork.

Download on the App Store3-day free trial. Cancel anytime.
Arni · your coach
5sports coached as one program
1readiness number for your whole week
0spreadsheets you have to keep
01

Coaches every sport at once

Running, cycling, swimming, rowing and gym or strength work — planned as one program, not five separate apps. Arni balances hard days and easy days across everything you do, so training in one sport stops sabotaging the others.

02

Auto-tracked with Apple HealthKit

Workouts you record on your Apple Watch or iPhone show up in Arni on their own. Log gym sessions by hand and Arni writes them back to HealthKit, so your training log stays complete in one place.

03

One fatigue picture, not five

Arni rolls every session across every sport into a single cross-sport fatigue and readiness model. One big friendly number tells you when to push — and when a rest day is the real workout.

04

Chat with an honest coach

Ask Arni anything: tomorrow's session, a race plan, whether you're overcooking it. Arni is safety-conscious by design — if a goal is unrealistic, it will tell you straight instead of cheering you into the ground.

Ready when you are.

Start the free trial and let one coach see the whole picture.

Download on the App Store