Vela is a calm period and cycle tracker that keeps every detail on your iPhone. No account, no sign-up, no servers — your data never leaves your device unless you choose to back it up to your own iCloud.
Everything you log lives only on your device. There's no Vela account and no Vela server — we never receive, see, or transmit your data. No analytics, no ads, no trackers.
Log your periods and Vela estimates your next cycle and ovulation window — all calculated on-device, so the math stays as private as the data behind it.
Capture how you feel and jot quick notes alongside each day. Spot your own patterns over time, with nothing shared and nothing surfaced to anyone but you.
Optionally sync periods and moods with Apple Health. It's on-device and only runs with your explicit permission, keeping everything inside Apple's ecosystem.
Turn on optional iCloud backup to sync between your own iPhone and iPad through your personal Apple account. It uses Apple's private database — even the developer can't access it.
A clean, native iOS design with themes and app icons to make it yours. Import dates from a Flo PDF or screenshot on-device, and export your full history as a PDF you control.
Sensitive by nature, private by architecture — your reproductive health data stays on your device, in your control.