01
Watch.
Tick what you see.
Your client moves; you mark what you notice: a knee that drifts in, a heel that lifts. No sensors, no camera rig.
Do I need equipment?
A phone or laptop and the floor you already train on.
See why they move the way they do.
Muscle-level findings from what you already see. You approve every one.
Free for trainers
Feature by feature
Every part, in a few seconds.
Assess
Movements recorded at home
Clients film each movement beside a demo, on their phone.
Score each movement
Tap what you see, next to the client's video.
Mobility screens
Pass or fail each screen. Spero keeps the follow-ups in order.
Follow-up questions in person
Questions open from what the client told you, so nothing is missed.
Understand
Every finding, on one body
Pick an area to read what you saw, how it connects and what it means for your client.
The muscle behind it
Open any muscle: what it does, where it attaches and why it matters here.
Where you'll focus
The whole story, ranked, in words your client understands.
Coach
Programs, built in minutesComing soon
Sets, reps, tempo and rest, day by day. Assign it when it’s ready.
Your client's programComing soon
This week's workouts, their history and how ready they felt.
Session notesComing soon
Notes, movement observations and follow-ups from every session.
A library in your wordsComing soon
Write short articles once and share them with every client.
- Programs, session notes and a libraryComing soon
Your business
Your brand, set up in minutes
Add your logo and colours. Every page your clients see wears them.
What your client sees
Their results, this week's tasks and your next session, under your brand.
Every client in one place
See who needs you next, search, and act from the row.
How it works
01
Watch.
Tick what you see.
Your client moves; you mark what you notice: a knee that drifts in, a heel that lifts. No sensors, no camera rig.
Do I need equipment?
A phone or laptop and the floor you already train on.
How it works
02
Screen.
Spero picks the screens.
From what you ticked, Spero chooses the mobility screens that tell the causes apart, and you run them side by side.
03
Find.
Read the finding, and the reason.
Each finding names the muscle and how it's compromised: short, overactive, weak. Open one and you see the rule behind it. You approve every finding before your client sees it.
Does it replace my judgment?
No. It shows its work; you make the call.
04
Share.
Your client sees it, in plain words.
Findings land in your client's portal, explained simply, under your business name.
Next: programs built from the findings, early 2027.
Why it holds
A model gives you an answer, not a standard
We asked the same case five times. The engine gave the same findings every time. Trainers and a frontier AI model did not.
Run 1Run 2Run 3Run 4Run 5
Spero’s engine1.00
Two certified trainers0.69–0.70
A frontier AI model0.55
Same finding as run oneDifferent findingScore: Fleiss’ κ agreement across the five runs
Same answer every time
Same inputs in, same findings out — every run.
Someone signs it
176 rulings, each with a named practitioner and a date. A model output has no author.
It learns from real clients
Every correction, re-test and new study is folded back into the rule it touches.
Trainer benchmark: Post et al. 2017, one movement. The model was given a practitioner’s observations and none of our rules, 20 cases × 5 runs × 2 conditions. This measures consistency, not correctness.
Where it’s going.
Live now
Movement assessment, mobility screens, findings, sign-off, client portal.
Q1 2027
Coming
Programs built from the findings.
2027
Coming
Teaching videos, about 150 filmed.
H2 2027
Coming
Reassessment every two months, progress against the goal.
See it on one of your clients.
Free for trainers