The CycleVault is a private period tracker that keeps every entry on your phone — no accounts, no trackers, no extraction. Just a beautiful daily ritual.
Hi, Queen ✦
FEB 11
Why a new tracker
Cycle data is some of the most sensitive information you have. It shouldn't live on someone else's servers, get sold to brokers, or quietly train a model.
Your symptoms, logs, and notes are uploaded the moment you tap.
Email, phone number, sometimes Apple ID linked to your cycle.
Facebook, Google, analytics SDKs — all reading along.
"Free" because the product is, quietly, you.
Every entry is written to your device's encrypted storage. That's it.
Open the app and start logging. No email. No password.
We don't embed analytics or ad networks. You can verify.
Free forever, with an optional premium tier that funds the work.
Designed for calm
Every screen is built to be quiet, fast, and unambiguous. No streaks. No nudges. No noise.
Today is the first thing you see — your phase, your prediction, a single tap to log. No streaks, no notifications, no guilt loop. Just the rhythm of your body, rendered gently.
Past periods, today, and predicted windows live on the same calm grid. Coral dots are real. Dashed circles are predictions. The little ones underneath whisper your phases.
Tap any cycle to open a clean ledger of daily logs — flow, mood, symptoms, discharge — each saved as soft pills. Edit anything; nothing is permanent unless you say so.
A single, calm chart of your last six cycles — and the one number that matters today: when your next period is likely to begin. We don't predict your fertility. We trust your body.
Turn on biometric lock and your cycle becomes invisible to anyone holding your phone — partners, family, customs officers. Face ID and Touch ID, no passcode storage of our own.
Hi, Queen ✦
FEB 11
Trends from your last six cycles
Authentication required to access your data.
Privacy by architecture
The CycleVault is engineered so that there's nothing about you to leak in the first place.
Everything you log — cycles, symptoms, notes — is written to your phone's encrypted on-device storage. We have no servers that see it.
No Facebook SDK. No Google Analytics. No third-party crash reporters. The binary you install is the entire story.
Export your full history to a portable JSON file whenever you want. Or wipe everything with a single, irreversible tap.
Our privacy summary, data model, and storage details are documented in plain English. If you spot something, tell us.
The CycleVault Library
A small, hand-edited library of plain-language articles — written to inform, not to alarm. No SEO bait, no scary headlines.
What's actually happening across the four phases — and why your body isn't a clock.
Hormones don't act alone. Sleep, stress, and life shape every cycle.
An honest look at the limits of any cycle app, including ours.
Simple, fair
Questions, answered
No. We never sell your data — and more importantly, we don't have access to it. Your cycle history lives on your phone in encrypted storage. There's no server-side database to sell from.
By default, no. Everything is stored locally. If you have iCloud Backup turned on for your device generally, your encrypted CycleVault data may be included in that backup — controlled by Apple's encryption keys, not ours.
No. There are no accounts to create, ever. You open the app and you start tracking. No email, password, phone number, or Sign-in-with-Apple required.
The core experience — tracking, calendar, history, export, app lock, light/dark themes — is free forever. An optional Supporter tier ($4.99/mo, $39.99/yr, or $79.99 one-time) unlocks deeper analytics, doctor-friendly PDF export, custom themes, home screen widgets, and priority email support. No ads. No data deals.
The full Insights tab (predictions for next 3 periods, fertile window, current phase, personal averages, cycle length trend, phase distribution, symptom frequency + timing, auto-generated observations, year-at-a-glance grid), doctor-friendly PDF export of your last 6 cycles, 4 color themes that tint the entire app, 3 alternate home screen app icons, home screen widgets, and priority email support. New subscribers get a 14-day free trial on annual or 7-day on monthly.
iOS first. Android is on the roadmap once the core experience is polished and stable. Sign up for the waitlist and we'll tell you the moment it lands.
COMING SOON · iOS
Join the waitlist and we'll email you exactly once: the day The CycleVault is available on the App Store. No newsletters, no nudges.
