About Metric — built by coaches and sports scientists
Metric is a Core Advantage project. Core Advantage is a select-entry private gym in Melbourne, Australia. We're coaches, sports scientists, and software engineers — and we built Metric because we needed it ourselves.
Why we built Metric
For years, velocity-based training in our gym meant a Linear Position Transducer clipped to the bar, a tablet on the floor, a Bluetooth pair that worked four times out of five, and a setup ritual that ate into every lift. We tried multiple LPTs and accelerometers. None of them survived a busy training floor without getting in the way of good coaching.
We even tried to build our own. Springs from a tape measure for a homemade LPT. Sonar pointed at the bar. Both were dead ends — and even if we'd nailed the hardware, the hardware was the problem.
The real breakthrough came from David, our software engineer, training in the gym one afternoon: what if a phone camera could measure the lift on its own? No string, no strap, no Bluetooth. Just video.
That's Metric. Eighteen months of research and development later we shipped the first iOS beta in November 2021. Years of optimisation followed — a C++ vision pipeline running on Metal shaders, accuracy work, real-time feedback, coach-and-team features. In May 2026 we launched on Android, with a full Vulkan rewrite of the same pipeline.
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Feature ideas, validation questions, or a result you want us to see — we read everything.
