Your cycle.
Your light.
Your shield.
Privacy-first period tracking with zero-knowledge encryption. We literally cannot read your data — and that's exactly how it should be.
Free to use. Premium features available.
Privacy isn't a feature.
It's the foundation.
Most period trackers collect your most intimate data and sell it. Vela was built differently from the ground up — your health data is encrypted on your device with keys only you hold. Even if our servers were compromised, attackers would find nothing but meaningless ciphertext.
Zero-knowledge
Health data is encrypted with keys only you possess. We cannot decrypt it, even under legal compulsion.
Panic button
One tap wipes your local keys and data instantly. No confirmation chains, no remote delay.
Identity separation
Health records use internal IDs, never your email, name, or any personally identifiable information.
Everything you need.
Nothing you don't.
Cycle tracking that respects your privacy
Log your period, symptoms, mood, basal temperature, and more — with 16 customizable sections. Everything stays on your device unless you choose otherwise.
Predictions powered by your data alone
On-device algorithms combine Ogino-Knaus calculation with weighted moving averages. No cloud AI, no data leaving your phone — just science running locally.
A garden that grows with you
Gentle, non-punitive gamification inspired by Studio Ghibli. Your plants wilt when neglected but never die — because self-care isn't about perfection.
Partner Mode, on your terms
Share phase context with a trusted partner using end-to-end encryption. You choose exactly what they see. Revoke access instantly, any time.
Three steps. That's it.
Download
Get Vela from the App Store or Google Play. Works fully offline — no account required.
Log
Track your cycle, symptoms, mood, and more. Customize which sections appear in your daily log.
Grow
Watch your garden bloom, unlock insights over time, and optionally share with a partner — all encrypted.
Built for every body.
Hormone-aware language. No gendered assumptions. No pink-washing. Vela's flower is a deliberate reclamation — earthy warmth, not pastel infantilism. Because tracking your cycle should feel empowering, not patronizing.
Begin your journey.
Your cycle, your data, your terms. Download Vela and take back control.