Safe, gentle sessions tuned to you
A short session built for today, from what you are recovering from and how you feel this morning. It starts easy, stays within comfort, and never asks you to push through pain.
A gentle at-home recovery guide
Move a little better
every day, safely, at home.
Tell Reva what you are recovering from and how you feel today. It builds a safe, gentle session tuned to your level, adjusts as you go, and tells you clearly when to check with a professional.
A free session every day. Gentle movement guidance, not physical therapy.
You told Reva
“Knee surgery, six weeks ago. A little stiff in the morning, no sharp pain.”
Reading how you feel...
Tuning to your level
Getting back is hard alone
Cleared to move, and then left on your own
The surgery or the injury is the part everyone helps with. The quiet weeks afterward, at home, unsure what is safe to do today, are the part where people get stuck, do too much, or stop altogether.
- 6 in 10
- people say they were sent home after an injury or surgery unsure what movement was safe to do
- 1 in 3
- give up on a home recovery plan within two weeks because it felt too much or too vague
- weeks
- the gap many people wait between being cleared to move and their first follow-up appointment
Illustrative figures used to describe the problem Reva is built for, not results from a study we ran. They reflect what people recovering at home tell us again and again: they are cleared to move but left unsure what is safe to actually do.
How it works
Three steps, about a minute
01
Tell Reva how you feel
In your own words. Knee surgery six weeks ago, a little stiff in the morning. Back went out last week, sore but no shooting pain. There is nothing to configure and no plan to pick, because Reva reads what you wrote and tunes to it.
The more honest you are, the safer the session. If something is sharp, worsening, or worrying, say so, and Reva points you to a professional instead.
02
Get a safe, gentle session
A short session built for today, tuned to your level. Clear form cues on every movement, a soft caution on each one, and a red-flag safety check that runs before anything is built. It always starts gentle and progresses slowly.
Before any session, Reva screens what you described. Anything that needs a clinician stops the session and points you to care instead of programming around it.
03
Reva adjusts as you go
After each session you tell Reva how it felt, in one tap. Felt good and it adds a little next time. Sore and it eases off. Something hurt and it eases right back and suggests checking in with a professional. Recovery is not a straight line, and Reva does not pretend it is.
Adaptive progress is part of Plus and Care. On the free daily session, you get a fresh gentle session tuned to how you feel that morning.
See a session
Pick a starting point. Watch Reva build it.
This is real output, running right here in your browser. Choose a recovery state, then toggle between the session, its form cues, and the cautions Reva always includes.
You told Reva
“Knee surgery, six weeks ago. A little stiff in the morning, no sharp pain.”
Gentle knee mobility
Gentle about 12 min3 movements
- 12 min, slow
Seated knee bends
- 28 slow reps
Heel slides
- 36 reps
Supported sit-to-stand
Check with a professional if: Check with your surgeon if pain worsens, the knee locks, or it swells after moving.
Reva adjusts the next session from how this one felt.
What you get
Gentle, tuned to you, and honest about safety
Progress that adjusts
Tell Reva how the last session felt and the next one adjusts. Gently more on a good day, easier on a sore one.
Plus and Care
Clear form cues
Every movement comes with two or three plain cues for form and breathing. No jargon, no guessing what good looks like.
Red-flag safety checks
Every session is screened for symptoms that mean stop and see someone. Reva would rather send you to a person you did not need.
How Reva keeps you safeA simple recovery log
Every session you do is saved, with how it felt, so you can look back and see the small, steady progress you might not feel day to day.
Model-agnostic
Each step goes to the model that is best at it, and a more involved description escalates on its own.
See the routing tableBuilt AI-native
The model is the engine, not a feature we added
Reva was not a workout app that later bolted on AI. There is no version of this product without modern language models, because the work is reading a person’s own words and responding safely. No rules engine turns “knee surgery six weeks ago, a little stiff” into a session that is gentle enough, tuned to the right level, and knows when to stop and send you to a clinician.
Reva is model-agnostic by design. Every step asks for a task, not a model, and one file decides which lab answers. A lab changing its price, its policy or its quality is a configuration change here, not a rebuild. And the red-flag screen runs in plain code before any model is asked, so safety never depends on a model behaving.
Routing table, generated from the code
- Build the gentle session for todaygpt-4.1-mini/balanced
- Adjust the next session from how the last one feltgpt-4.1-mini/balanced
- Screen the described state for red flagsgpt-4.1-nano/fast
Candidates from other labs are declared behind the same interface and switch on when their key is present. The escalation rule and the fallback chain are on the How the AI works page.
Care and safety
Guidance, not physical therapy. Stop if it hurts.
A recovery guide you can trust is one that knows its own edge. Reva holds that edge every time, and it says so before every session, not in the small print.
Never through pain
Reva starts gentle and stays within comfort. If a movement is sharp or wrong, the instruction is always to stop, not to push.
Guidance, not treatment
Reva guides general mobility and gentle strength. It is not physical therapy, diagnosis, or treatment, and it does not replace your clinician.
It knows when to stop
Every session is screened for red-flag symptoms. If it sees one, it stops and points you to care rather than building a session around it.
Reva stops and sends you to a professional for
- Sharp, sudden, or shooting pain
- Pain that is getting worse rather than easing
- Numbness, tingling, or a limb giving way
- New swelling, warmth, or redness, especially in a calf
- Chest pain, shortness of breath, or dizziness
If it is an emergency, or you have chest pain, trouble breathing, or you have had a fall or fainted, call your local emergency number.
Read the full Care and safety stanceIn their words
A little better, every day
“Six weeks after my knee replacement I was cleared to move but terrified to. Reva gave me five easy minutes the first morning, told me exactly what to ease off on, and by the third week I could feel the difference. It never once pushed me.”
“After two years of barely moving, starting again felt impossible. Reva made the first sessions so gentle I almost laughed, then it added a little each week. Telling it I was sore and watching the next session ease off is what kept me going.”
Illustrative recovery stories, written to show how Reva is meant to feel. They are composites, not quotes from named people.
Pricing
A gentle session every day, free
Prices are in US dollars and that is the only price list there is. No setup fee, no minimum term, cancel any time from Billing.
MonthlyAnnual
Switch to annual and two months are free.
Free
A gentle session every day, tuned to how you feel that morning, with the red-flag safety check built in. Enough to get moving again, at your own pace.
$0forever
No card required
One gentle session a day
- One gentle session a day
- Tuned to what you are recovering from and how you feel
- Clear form cues on every movement
- Red-flag safety check on every session
- A simple log of today's session
Plus
For the weeks when you want to actually get somewhere. Reva remembers how each session felt and adjusts, builds longer programs, and keeps your whole recovery log.
$12per month, USD
$144 a year, or $120 on annual
Start on Plus
Card payments are not switched on in this deployment yet, so this joins the list and we email you the moment it is.
Adaptive progress, longer programs, full recovery log
- Everything in Free
- Sessions that adapt from how the last one felt
- Longer, multi-week gentle programs
- Your full recovery log, searchable
- Progress you can see over time
- Email support
Care
For recovering with someone in your corner. Everything in Plus, plus a private progress page you can share with a family member, carer, or coach, and priority support.
$24per month, USD
$288 a year, or $240 on annual
Start on Care
Card payments are not switched on in this deployment yet, so this joins the list and we email you the moment it is.
Share progress with a family member or coach, priority support
- Everything in Plus
- A private, read-only progress page
- Share it with a family member, carer, or coach
- They can follow your sessions without an account
- Priority support with a same-day first reply
Move a little better, starting today
A gentle session tuned to how you feel this morning, free, with the red-flag safety check built in. No card.