$59.5M
Flo's data settlement (2026)
0 bytes
CycleVault sends to any server
440M
Users whose Flo data was at risk
$4.99
Per month for full privacy
Most period trackers quietly upload your intimate health data — flow, sex, moods, pregnancy attempts — to cloud servers and share it with advertisers, data brokers, and partner companies you've never heard of.
CycleVault is built differently. Every byte you log stays in your browser's local storage. There is no server to subpoena, no database to breach, and no ad network to sell to. We can't see your data — and we want it that way.
Recent headlines
"Flo Health and Google agreed to a $59.5M settlement for sharing period and pregnancy data without consent."
"Meta faces $8 billion lawsuit for using Flo period app data for targeted advertising."
"Flo Period App Shared Data Without Consent — Meta was found to have collected user health information illegally."
01
No sign-up, no email, no password. Open the app and start logging in 30 seconds.
02
All data stored in your device's local storage. Open DevTools and verify zero requests are sent.
03
After 2–3 cycles, smart predictions for your next period, fertile window, and PMS window — all calculated locally.
Log period start and end, flow intensity, and cycle length over time.
Quick-tap logging for cramps, headaches, bloating, fatigue, mood, sleep, and energy.
Next period, fertile window, ovulation day — calculated on your device.
Generate a professional 1-page summary for your gynecologist.
Bring years of history with you when you switch.
Period reminders and daily log prompts via browser push. Works offline.
Choose the visual experience that feels right for you.
| Feature | CycleVault | Flo / Clue |
|---|---|---|
| Data stored on your device only | ✓ Always | ✕ Cloud upload |
| No account or email required | ✓ Yes | ✕ Required |
| Data sold or shared with advertisers | ✓ Never possible | ✕ Proven in court |
| Works on Android, iOS, desktop | ✓ Any browser | iOS / Android only |
| Export your data anytime | ✓ One-click JSON/CSV | ✕ Limited |
| Price for premium features | $4.99/month | $5–$8/month |
| Can you verify privacy claims? | ✓ Open DevTools, check live | ✕ Trust their word |
Support CycleVault early and never pay again. One payment unlocks every Pro feature — now and forever. Only 150 spots, then this offer closes for good.
$0
No card, no trial
Payments processed by Stripe. Your health data is never involved in payment processing.
Open DevTools (F12 or Cmd+Option+I), go to the Network tab, then log a symptom. You'll see zero outbound requests to any server. Check Application → Local Storage to see exactly what data is stored and where.
Your data will be cleared along with it. This is the trade-off of true local storage. We recommend exporting your data as a JSON backup (one click in Settings) every few months.
Not with automatic sync — that would require a server. You can manually export data on one device and import it on another. We're building optional end-to-end encrypted sync.
No. Premium unlocks features — all generated locally. Stripe receives only your payment details, completely separate from your health data.
CycleVault is a tracking and awareness tool, not a contraceptive method. For contraception decisions, please consult your healthcare provider.