Body scan
Strength · Capacity · Endurance
Every athlete.Every exercise.One rating.
A heavy single, a 20 minute AMRAP and a half marathon have never shared a scoreboard. FITNDEX measures what each one produced, from the phone in your pocket, and scores them on one rating. For athletes who still compete, and for the ones who still train like it.
TacticalBodybuildingConditioningHybridPowerliftingRunning
FITNDEX Ratingexample
STRENGTH
CAPACITY
ENDURANCE
0.74m/sbar speed348Wset power31.3kJwork73rating
Required
A phone
Optional
WearableBar tetherBar sensor
One lens
Three ways of seeing the same thing.
Lifters watch bar speed and runners track pace. Researchers model power. The best athletes in the world train by feel and call it RPE. Each one is a piece of the same physics. FITNDEX is the first to read all three, together, from one phone.
Velocity.
What the eyes see
Velocity on every rep, every run. Recorded straight off your phone. No special equipment.
Power.
What the lab models
Work and power for every rep, every set and every run, on the same models the research uses.
Effort.
What the athlete feels
Tell us how hard the set was. With the load, that gives us your one rep max without ever putting you under it, and a limit to build your training from.
Everything matters
Wherever the load comes from, it counts.
Your bodyweight, the bar, the pack on your back. FITNDEX has a use for all of it, and every bit of it feeds your rating.
Body scanAbout a minute
Height, weight, and a one minute scan
Long upper arms. Personalized feedback on your mechanics, in app.
Your frame
Measured on your body, not an average one.
Enter your height and weight, then give the camera a minute and six positions. From then on every number is worked out for the frame you actually have: long shins, long forearms, whatever you were built with. A pushup at your size counts as your pushup, not a textbook one, so bodyweight work finally shows up in the record with a number on it.
- Scan
- 1 minute
- Positions
- 6
- Returns
- every segment
What you needA phone
GPS
0.00 km
REC
REC
Reps
Rep velocity
Distance and pace
Film the lift or start GPS. Nothing to buy, nothing to strap on.
What it takes
The instrument is already in your pocket.
Film a set and every rep comes back with speed, work and power, so five reps at the same weight show up as five different efforts. Start GPS and a run is measured the same way. No bar sensor, no chest strap, no watch. Just the phone, every session.
- Per rep
- speed, work, power
- Setup
- film it or track it
STRENGTH0 to 7 sCAPACITY7 s to 3 minENDURANCE3 min and up
The rating
Seven seconds. Three minutes. Everything after.
Strength is what you can produce in the first seven seconds. Capacity is what you get done before your breathing takes over. Endurance is what you can hold after that. A lifter lives in the first window, a runner in the third, and most of us train across all three. Each window is scored on its own. Together, they are your rating.
- Windows
- 3
- Example rating
- 73
What you can do
Explore the features.
Upper armlong
Forearm
+
Loaded lifts
Upload a video of a loaded exercise.
Bar speed · 5 reps m/s
+
0.810.760.710.620.51
Import
Bring in the program your coach wrote.
From a photo
+
Rucks, runs and hikes
Track a ruck hike with GPS.
6.4km11:15/km+15kg
Plyometrics
Upload a video of plyometrics.
20in box0.46s air time1,180W peak
Cardio machines
Snap a photo of the console.
Read from the panel
+
Speed8.0 mphPace8.9 /miHR138
Build
Write your own program, by hand or with Kaelis.
W2 · D2Squat 4 × 6 @ RPE 8
+
Programming by Kaelis
Or let Kaelis build it from your records.
Block 3 is ready. Built from your last 1,100 records.Example data shown.
Training schedule
Manage your training in app.
Your programThree ways in
However it gets there, it lives in the app and you log straight from it.
- Buildmanual or assisted
- Importany plan from a photo
- Kaelisautomated programming
- Kinetic
- Analysis
- Engine for
- Load
- Intensity and
- Strategy
Meet Kaelis
A thousand certified trainers in your pocket.
Kaelis runs the scan, reads the video, maps the console photo, processes the route and works out the movement from a typed set. Then it coaches, drawing on the same body of exercise science and coaching practice that personal training certifications in the US and UK are built on, the endurance science of running, rowing and cycling, and the strength knowledge that never made it into a textbook.
- No vibes, no trends. What works, with the variables tuned to you.
- Everyday coaching runs years behind the research. Kaelis does not.
- Every record you send in makes the next answer better, for you and for everyone.
Invite-only beta
Numbers you can trust.
Everything here passed our testing before it reached you, and it is only the start. More is on the way. Hold your place now and you are in line for the earliest wave we open. We will email you the moment your invite is ready.