READ
See what your body already did
Roni starts with completed Tonal sessions, strength trends, your schedule, and the goals and limitations you set.
Training intelligence for Tonal owners
Your Tonal knows what you lifted. Roni knows what to do next.
An open-source AI coach that reads your real training history, builds the week around your goals and recovery, and sends approved workouts back to your Tonal.
- Your real Tonal history
- A plan that adapts weekly
- You approve every workout
Illustrative week
Built around what changed
On track
Tonal volume
−8%
Sleep trend
7h 24m
Cardio load
Moderate
MONREADY
Upper strength
42 min · Tonal
TUEEASY
Recovery
Mobility · Walk
WEDADAPTED
Lower volume
48 min · Tonal
FRIREVIEW
Full body
Coach draft
Coach: Wednesday volume came down after Tuesday cardio and a shorter sleep night.
Review planTraining historyRecovery contextCross-training loadOne useful week
One coach. The whole week.
A plan should react to your life before you have to.
Most workout generators start from a blank prompt. Roni starts from the work already in your body, then keeps the plan useful when your schedule, performance, or recovery changes.
DECIDE
Program the week, not just the next workout
Coach balances volume, recovery, cross-training, and missed sessions before proposing the next useful dose.
DELIVER
Approve it, then train on Tonal
Review the exercises, sets, reps, and targets. Nothing is sent to your machine until you approve it.
What Tonal owners are saying
Real feedback from real users
This is an absolute shut up and take my money!!
Chris N.Tonal owner, 2 years
This is shaping up to be far superior to Tonal's beta AI daily lift program.
David D.Tonal owner, 3 years
It is exactly what AI can and should do. Sad that it takes someone outside of Tonal to think of and create it.
Marcus T.Tonal owner
I was just lifting this morning and thought 'how can this thing not have a more custom workout for me'
Ryan F.Tonal owner, 1 year
Bang! It is now in custom workouts!
Sam H.Tonal owner, 4 years
I feel like Tonal should just pay you for this.
Maya S.Tonal owner
Useful context. Explicit boundaries.
Your training data works for you.
Connected data is used to coach you—not to advertise to you. You can disconnect a provider, delete imported data, and review every workout before it leaves Roni.
Read the full data policyTonal
Training history, strength context, and approved workout delivery.
Core connectionFitbit
Optional read-only activity, health metrics, and sleep context.
Provider reviewGarmin
Optional activity and recovery context, plus approved workout delivery.
Provider reviewOptional Fitbit and Garmin features remain subject to their providers' approval and may not be available to every account.
Common Questions
Is Roni free?
Yes, completely free and open source. No credit card required. You bring your own Google Gemini API key (free from Google AI Studio) so the AI runs on your quota, not ours.
Is it safe to connect my Tonal account?
Yes. Your credentials are used once to obtain an access token and are never stored. The token is encrypted with AES-256-GCM. We only access workout history, strength scores, and movement data.
How does the AI coaching work?
The AI analyzes your training history, strength trends, and recovery patterns to build personalized programs. It applies progressive overload, periodization, and injury awareness — grounded in your actual data.
How is this different from Tonal's built-in programs?
Tonal's programs are pre-built for general audiences. Roni creates fully custom programs based on your data — your lifts, recovery, goals, and injuries. It adapts week to week as your performance changes.
Workout library
Start with a proven session. Make it yours with Coach.
Browse more than 800 Tonal workouts by goal and muscle group, then ask Roni to adapt one to your history, schedule, and readiness.
Open Source
$0Forever free to use
Bring your own Google Gemini API key (free from Google AI Studio) so the AI runs on your quota, not ours.
Your next week starts here
Bring the data. Keep the decisions.
Connect your Tonal, tell Roni what you are training for, and approve a plan built for the week you actually have.