About
Built in the studio,
not in a boardroom
Spring is an independent project: a flow builder on the web, with companion apps for Apple Watch and Garmin. No accounts to upsell, no subscription, no phone propped against the footbar between moves.
Who builds it
Zane Williamson has been practicing Pilates for more than five years, on both Reformer and Mat. Home practice happens on a Contrology JGRIMES reformer — the classical apparatus Contrology built with Jay Grimes, measured off his own machine. No modifications, no extras. That bias shows up in this app.
That practice runs alongside 20+ years of building software and systems. Spring is what happens when those two things meet: a flow you sequence yourself, with every cue and every spring change on the watch, so the work stays eyes-up and hands-free.
If you have a flow you love, a move the library is missing, or a device that deserves support, the app gets better when people say so.
Start building
Sequence a flow from the move library, pair your watch once, and take it into the studio.