What people ask us, and what we answer — including when the answer does not flatter us.
The sensor is worn on the wrist, not on the bar. Does that change the measurement?
Yes, and it should be said. The wrist does not travel exactly like the bar, particularly on movements where the arms move relative to the trunk. We chose the wrist because it makes set-up immediate and the sensor usable on every exercise, including those without a barbell. Consistency from session to session for the same athlete on the same exercise is good — and that is what drives training decisions. A figure-for-figure comparison against a bar-mounted system has not yet been formally carried out on our side. It is work we intend to do, and we will publish the results as they come out.
Can Tracker's values be compared with another device's?
Not yet. Until we have run that comparison, treat Tracker's values as an internal scale: they compare against each other, over time, for the same athlete on the same exercise. Do not place them next to another system's figures in the same table.
How long does it take to set an athlete up?
About ten seconds: clip the sensor to the strap, open the app, pick the exercise and the load. Nothing to calibrate, nothing to position precisely.
Which devices does the app run on?
iPhone, iPad and Mac. It is currently distributed through TestFlight to pilot organisations; App Store release will follow that phase. An Android version is planned, with no date fixed today.
Do you need an internet connection in the gym?
No. The sensor link is Bluetooth and the session is stored on the device. A connection is only needed to share a report or, in time, to sync to Sinetik:studio.
What happens to the data, particularly for players under 18?
Sessions are stored locally on the staff's device and can be exported at any time. Synchronisation to Sinetik:studio, currently in development, will run on European hosting with strict separation between organisations: the data belongs to the club, not to us, and follows the player if they move on. We collect no imagery and no location, and the values recorded are training measurements — not health data.
Do you need to know your 1RM to use Tracker?
No, and that is part of the point. Tracker estimates maximal strength from the load-velocity relationship, using a few submaximal increments. In a youth setting, that removes the need to put young athletes through maximal attempts simply to establish their strength level.
Does it replace a strength and conditioning coach?
No. Tracker measures and flags; it does not decide. It tells you a set has lost twenty per cent of its velocity — not whether that was the day to stop there, for that athlete. That call stays yours, and the tool exists to make it easier to make, not to make it for you.
What if Tracker counts a repetition that was not one?
It happens — an unrack, a reset. The app filters out movements that are too short or too slow, and any questionable repetition can be removed with one tap during or after the set. Averages and velocity loss are recalculated immediately.
Does Tracker data flow into Sinetik:studio?
That is the plan, and it is the reason the whole thing exists: gym load, wellness, testing and planning in a single history per player. The connection is in development. The interface will also be open to other analysis platforms — you will not be locked in with us.
