ULA is the fully on-device period tracker. Your data stays on your iPhone, exactly where it belongs.
Using a series of Probabilistic & Adaptive engines, ULA learns your unique cycle, making accommodations for irregularities like PCOS or PMS.
Data is stored entirely on-device. Export, import, or erase your entire history with one click. No cloud, no leaks.
From Mittelschmerz to mood swings, track exactly how you feel at every stage of your cycle.
ULA was built because your most sensitive information shouldn't be a product. Your data stays on your device, we don't collect, track it or analyze it.
Everything happens on your device.
ULA:~$ verify --integrity --privacy-first
Audit our logic on GitHub. Verify the on-device architecture yourself.
View Source Code _