System description
How Heroes OS actually works
Written for the person who has to decide whether this is real: the engineer, the CTO, the clinician who wants to know what the machine sees before it goes in front of a patient.
1.0
Three layers, and one of them sits under the other two
Most companies here pick a side. An app has no hands. A clinic robot stays in the clinic. We build both, and then the layer that makes them one record.
Layer 1 · Software
Heroes.AI
The part a person touches. Guided therapy at home, with the care team able to see what happened between visits.
Live on the App Store since June 2026. A distribution milestone, not a clearance. See 8.0.
Layer 2 · Hardware
Heroes Hardware
The instruments. HandVivante, the Heroes Exoskeleton, ROSE. Each does therapeutic work, and each is also a sensor, because a machine coupled to a limb measures things nothing else in the home reaches.
Layer 3 · Underneath both
Heroes OS
Not a product you buy. It takes behavior from the app and force from the devices, puts them on one timeline against one person, and hands back a program for tomorrow that differs from today because something in the data changed.
Without it you have an app and some equipment. With it you have one longitudinal record of a recovery, which gets more valuable the longer it runs.
Heroes.AI runs on iPhone and iPad today.
2.0
What the data layer is
A person has a stroke, spends some weeks being measured carefully by trained people, then goes home with a photocopied sheet and a follow-up in six weeks. The rehabilitation that decides the outcome happens in that gap, and almost none of it is recorded. The next measurement is taken six weeks later, in a clinic, under observation, which is the least representative moment in the whole period.
The data layer is the answer to that gap. Three streams, one timeline.
| Stream | Source | What it carries |
|---|---|---|
| Biomechanical | Heroes Hardware, coupled to the limb | Joint angle through range, force and torque at each point in it, how much assistance the machine supplied, tremor and smoothness, and how the last repetition compared with the first. |
| Behavioral | Heroes.AI sessions at home | What was attempted, finished, or quietly abandoned. Time of day. The skipped Tuesday. A caregiver doing the session instead of the patient. |
| Clinical | The care team | Outcome scores, notes, and every time a clinician overrides what the system proposed. An override is not a failure; it is the most informative event we record. |
3.0
Why joint-level force cannot come from a camera or a wrist band
Phones have very good cameras. Watches are already on the wrist. So why put a machine in the house?
Because a camera records kinematics, where a limb went, and stroke recovery turns on kinetics, what it cost to get there. Two people trace the same arc on video. One is using a recovering muscle; the other is swinging the trunk and letting momentum finish the reach. On camera those are identical. In the body they are opposite events.
| Instrument | Resolves | Cannot resolve |
|---|---|---|
| Phone or room camera | Limb position, gross trajectory, repetition counting in good light with a clear view. | Force, torque, effort, resistance through range. Anything behind an occlusion, which in a real living room is most things. Depth from a single view is estimated, not measured. |
| Wrist wearable | Acceleration and rotation of one point on the body. Step counts, activity minutes, heart rate. | Which joint produced the motion. It cannot tell an elbow extension from a shoulder shrug that carried the wrist to the same place. It measures the end of the chain and guesses at the rest. |
| Clinician, in person | Nearly everything, expertly, including things no instrument catches. | Tuesday at half past nine. Human observation is the gold standard, and it is available about an hour a week. |
| Actuated device on the limb | Force and torque at the joint, because the machine is coupled to it. It knows the commanded position, the achieved position, the error between them, and the current it drew to close that gap. Effort, measured rather than inferred. | Anything outside the session. It sees the limb it is attached to and nothing else, which is why the behavioral and clinical streams exist. |
That is the argument for owning hardware. The measurement does not exist unless something is holding the limb, which is also what we mean by physical AI: a model whose inputs and outputs are forces in the world, not pixels or text about it. The data is expensive, it cannot be scraped, and there is no public corpus of it. The hardware is not a delivery mechanism for the software. It is the sensor the software is made of.
4.0
What we own, and what we do not
Owned
- US Patent 10,966,897 B2Automated walker assembly, granted April 2021. Motorized autonomous movement, telescoping mast, manipulator arms, tether, modular payload bays.
- Heroes OSThe integration and adaptation layer. Ours, end to end.
- Heroes.AIThe application and its therapy logic.
- The software stackFully owned. No foreign intellectual property dependencies anywhere in it.
- The longitudinal recordThe data structure and the dataset that accumulates in it, held under the agreements in 7.0.
Licensed, distributed or third-party
- HandVivanteHolds an FDA 510(k). Manufactured by Robotimize. Prosperous is the US distributor; transfer of the clearance is in process. Prosperous itself is not FDA cleared and does not claim to be.
- Cloud infrastructureCommercial US infrastructure, not owned by us. Residency and agreements in 7.0.
5.0
Four modalities, one platform
A stroke does not respect the boundaries of a specialty, and neither does the day of the person recovering from one. Heroes.AI combines physical, occupational, speech and mental health therapy in one adaptive home platform: one program, one record, one place a caregiver has to look.
Modality content is delivered under a clinician-directed program. Heroes.AI does not diagnose and does not make independent clinical decisions. See 8.0.
6.0
How the program changes between Monday and Tuesday
- The session produces a record, not a scoreEvery repetition carries its own numbers: range achieved, force required, assistance supplied, how the tenth compared with the first. Fatigue inside a single session is visible, and it matters more than the session total.
- Compared with this person, not a populationThe reference is their own last two weeks. A number that would be poor for a healthy adult can be a good Tuesday for someone eleven weeks out from a bleed.
- Three things can moveDifficulty, dose and order. Harder, longer, or a different sequence when the data says a person is quitting at the same point every day.
- Changes stay inside bounds a clinician setIt proposes inside a window, and does not take a person anywhere their care team has not agreed to.
- An override is recorded as signalWhen a clinician overrules the proposal, it is captured with its context. Those events are the most valuable training data we have: a trained human telling the model exactly where it was wrong.
- Nothing publishes itselfAutomated output is a proposal until a person with responsibility accepts it. That rule runs through the whole company.
7.0
Security posture, stated plainly
We work toward the federal market and we serve veterans, so the standard is not the consumer app standard. Where something is not finished, it says so.
Two registered federal entities. Prosperous Healthcare LLC, UEI YDZSQC74NZL1, CAGE 1U0T0. Prosperous Robotics Group, Inc., UEI WXSLW7DG9WR5, CAGE 923Z6. Prosperous Healthcare LLC holds SDVOSB certification from the SBA in 2026. Prosperous Robotics Group, Inc. does not.
8.0
What this system does not do
If you are evaluating us, read this section first and the rest second.
Limits and non-claims
- It does not diagnose.Heroes.AI is a clinician-directed support tool. It does not identify conditions, and it does not make independent clinical decisions about a person's care.
- Prosperous is not FDA cleared.HandVivante holds an FDA 510(k), manufactured by Robotimize, and we are the US distributor with the transfer in process. That is a clearance on a device, held by its manufacturer. It is not a clearance on our company or on our software.
- App Store availability is not a clinical result.Heroes.AI has been live since June 2026. That means Apple let us distribute it. It means nothing more than that.
- It does not replace a therapist.It covers the six days a week a therapist cannot be in the room. Anyone selling you a replacement for clinical judgement is selling something we do not have and do not want.
- We have no outcome trial to point at yet.We have research collaborations, a protocol path, and two patients willing to say publicly that the app helped them. That is not evidence of efficacy and we will not dress it up as such.
- Heroes OS is not finished.Parts of it run today and parts of it are being built.
- It cannot make somebody want it.The hardest problem in home rehabilitation is not sensing or modelling. It is a person alone in a house on day forty who has stopped believing this will work. We design for that. We have not solved it.
If you want the detail behind any of this
Engineers, clinical teams and diligence readers can have the underlying documents rather than a summary.