AI-powered coaching for every athlete
ARNI learns how your body responds to training, adapts your plan in real time, and keeps you on the fastest path to your goals, without the guesswork.
Good morning, Sarah
Monday, April 6
Check-in complete
Readiness 4/5 · Slept 8h
Today's session
Running: Tempo intervals
45 min · Intensity 7/10
4x 1km at threshold pace with 90s recovery. ARNI lowered volume based on yesterday's RPE.
Goal health
Your load is climbing nicely. Today's intervals keep the stimulus up without overdoing it.
ARNI combines sports science with AI to give every athlete a personalised coaching experience.
ARNI considers your load, goals, and how you're feeling today to generate the perfect session, every single day.
Track chronic and acute load, form score, and body-region balance. Know exactly when to push and when to recover.
A quick morning conversation captures sleep, readiness, mood, and soreness so ARNI can adjust today's plan.
Chat with ARNI about anything: training, nutrition, recovery, motivation. Context-aware responses grounded in your data.
Every Sunday evening, ARNI analyses your week and delivers actionable recommendations for the next seven days.
ARNI periodically checks whether your goals are still on track and flags risks before they become problems.
From setup to results in four simple steps.
Two minutes of onboarding: your sports, goals, experience level, available days, and any injuries. That's all ARNI needs to get started.
A 30-second wellness check captures how you slept, your energy, soreness, and life stress. ARNI uses this to fine-tune today's session.
Each session is generated fresh, factoring in your load history, goals, and how you're feeling. Log your RPE when you're done.
Weekly AI reviews highlight what worked, what didn't, and what to change. ARNI's feasibility audits keep your goals honest.
“I've tried a dozen training apps. ARNI is the first one that actually adapts to how I feel each day instead of just following a rigid plan.”
Sarah K.
Marathon runner
“The weekly reviews are gold. It's like having a real coach who actually looks at your training data and gives honest feedback.”
James T.
Triathlete
“I went from getting injured every few months to my longest unbroken training streak. The load monitoring is a game changer.”
Mira L.
Cyclist
Start free. Upgrade when you're ready for the full experience.
Track your training manually
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Best value for serious athletes
ARNI supports any sport you do. Whether it's running, cycling, swimming, CrossFit, martial arts, or anything else, the AI adapts to your training style and goals.
ARNI analyses your goals, current training load, recent sessions, and daily check-in data. It generates a session that balances progression with recovery for where you are today.
Yes. ARNI stores your data locally so you can view your plan, log sessions, and do check-ins without an internet connection. Everything syncs automatically when you're back online.
Absolutely. All data is encrypted in transit and at rest. We use Supabase with row-level security, so only you can access your training data. We never sell your data to third parties.
Yes. You can cancel at any time through the App Store or Google Play. You'll keep premium access until the end of your billing period.
No. ARNI works entirely from the app using your daily check-ins and session logs. Wearable integration is on our roadmap for a future update.