umber
Join the free UK beta
Missed a session? Woke up sore? Twinged something?
Umber looks at how you actually are today, then gives you the best next step towards your goals.
Umber’s readiness screen for a day with a sore chest, sore shoulders and 45 minutes to train: readiness 79, status Ready.
In practice
Some days you’re flying. Others you're not. Umber starts from how you are, not from how your programme said you’d be.
I feel great, and I’ve got two hours.100 Ready 18 sets across 6 exercises. See that day
Chest and shoulders are sore. I’ve got 45 minutes.79 Ready 13 sets across 5 exercises. See that day
My knee’s niggling.82 Ready 23 exercises marked Avoid for joint pain. 14 sets still built. See that day
Everything hurts. I’m shattered.29 Rest advised Umber advises rest. See that day
Try it out
These examples are genuine Umber outputs. the readiness scores, workouts and rest advice come straight from Umber’s engine.
Day 01 · synthetic check-in
18 sets · 6 exercises
What changed Nothing is holding today back, so Umber builds the full session: 18 sets across 6 exercises.
Day 02 · synthetic check-in
13 sets · 5 exercises
What changed With chest and shoulders sore and 45 minutes, Umber builds 13 sets instead of 18. The incline press isn't in this plan, and the cable fly drops to two sets.
Day 03 · synthetic check-in
14 sets · 5 exercises
What changed Knee pain at 4 out of 5. Umber marks 23 exercises Avoid, every one for joint pain, then builds a chest, back, abs and calves session of 14 sets.
Day 04 · synthetic check-in
Rest advised. If you're determined to give it a go, I'll still generate the safest possible workout for you today.
What changed Tiredness 4, soreness in four areas and joint pain in three. Even with two hours free, Umber advises rest (“Readiness is low today.”). You can still ask for the safest possible workout.
Built around you
Start with what you’re working towards and what to protect. After that, start working out and let Umber learn how you respond best.
Choose a preset look to aim for, or set each region goal yourself. Umber will use this to adapt your training priorities automatically.
Set any area to Train carefully or Avoid for now and Umber plans accordingly.
Every exercise earns a score for each muscle it trains. It’s calculated from how that exercise works for you, not how it works for everyone.
STIMULUS: How well you feel the exercise works the target muscle. EXPERIENCE: Your enjoyment, fatigue, and discomfort ratings for the exercise. PROGRESS: How your performance on this exercise has changed over time. RECOVERY: How easy or hard the exercise is on your body. PREFERENCE: Whether you love it, feel neutral about it or dislike it.
No wearable or third-party system needed. Umber works from how you say you feel and the sets you log - that's it!
How it works
What’s sore, what’s niggling and how long you’ve got are weighed before Umber ranks a single exercise.
Your goals and your training history inform which of the exercises that remain are worth your time today.
The sets and feedback you log shape what Umber recommends later.
A note from the founder
I’d spend ages planning the perfect routine, only to miss a session, feel too sore or twinge something, and suddenly I’d be on the back foot and lose motivation.
Having Umber means I can roll with life’s surprises, and my training’s more consistent than ever!
FAQs
Fixed training splits programme volume and exercises based on the split-maker's experience and body. umber instead generates the right workout for your body on demand - factoring in your personal constraints, goals, history, and preferences. So, if you miss a day, umber will put you right back on track.
As long as you're honestly filling in the check-in, umber will know when it's better for you to rest. If your check-in leaves too little worthwhile training, umber will recommend a rest day. You can still override that recommendation and request the most sympathetic viable session if you're desperate to get a session in.
Each workout, you'll log completed sets, reps, load, and intensity, plus optional feedback for each exercise which really helps umber adapt to your biomechanics and physiology.
No. We wanted umber to give you the best output every time, and AI models can't guarantee that. umber is instead making decisions based on thousands of calculations based on real biomechanics and hypertrophy research data.
No. umber records your training-relevant readiness and provides exercise-planning guidance. It won't diagnose injuries or replace qualified medical advice.
The free UK beta is for adults aged 18+ who are ordinarily resident in the United Kingdom. The marketing site can be viewed globally, but beta access will not be offered outside the UK.