Your cycle. Your data. Your device.
Track your period, get smart predictions, and understand your body - without sharing a single byte of health data with anyone.
Want to see what Veil looks like with 27 months of cycle data? Download a sample backup
No servers.
No accounts.
No health data.
Your health data never leaves your phone. Period dates, symptoms, moods, notes - all of it stays local, encrypted, and yours alone. Optional anonymous usage stats help us improve the app and can be turned off in seconds.
Everything you need.
Nothing you don't.
Five highlights below. 50+ features in the app - all private, all on-device, all translated into 9 languages.
See the full feature listYour cycle, at a glance
Cycle day, phase, and personalized insights on one beautiful screen. Pill-tracking mode for birth-control users, amenorrhea alerts, and prediction confidence - all on-device.
- Live cycle ring
- Phase indicators
- Pill mode
Track everything
Flow, mood, energy, sleep, symptoms, cervical mucus, contraception (pill, hormonal IUD, copper IUD, implant), and notes. Nine categories, one tap each.
- Flow, mood & energy
- Pill, IUD & implant
- Cervical mucus & lifestyle
Insights & PMDD score
Cycle quality, PMDD severity (DSM-5 weighted), health alerts, pill adherence, observed-vs-predicted ovulation, and mucus heatmap. Method-aware: cycles on hormonal contraception are excluded from regularity and PMDD scoring so your natural baseline stays accurate. Free headline stats, deep trends with Plus.
- PMDD severity score
- Cycle quality
- Health alerts
Health reports & privacy
Doctor-ready PDF with sleep, energy, pill, and PMDD charts. Biometric + PIN app lock. AES-256 encrypted backups. No accounts, no servers.
- Shareable PDF
- Biometric lock
- Encrypted backup
Appointments & reminders
Pin doctor visits to your calendar with custom alerts. Set recurring reminders for pills, IUD checks, anything. A clock badge on the calendar shows you which days have something planned.
- Unlimited appointments
- 3 free reminders, 15 with Plus
- Tap any future day to add
Your private AI
health companion.
Ask anything about your cycle, symptoms, and patterns - and get answers grounded in your own data. Powered by Google's open Gemma model, running entirely on your phone.
Grounded in your data
Every answer draws from your cycle log, symptoms, and patterns - not generic internet advice.
Fully offline inference
The model runs entirely on your device via llama.rn. Your prompts and answers never leave your phone.
Encrypted when you want history
Chat history is off by default. Switch it on and every conversation is AES-256-GCM encrypted with a device-only key.
Works best on recent flagship phones (iPhone 15 Pro or newer, or Android with 8+ GB RAM). A 1-5 GB model is downloaded once after you turn the feature on.
60 seconds with Veil.
A glimpse of every feature, in motion. Tap play to watch.
Built on the
medical literature.
Every threshold, score, and detection rule is grounded in published research - not invented numbers. Veil is a self-tracking aid, not a medical device.
Read the methodology
Privacy isn't a feature.
It's the foundation.
Most cycle trackers store your data on their servers. Veil doesn't even have your data.
Encrypted on-device
All your data is encrypted on-device with industry-standard AES encryption. Backups use AES-256 with authenticated HMAC. Even if your phone is compromised, your data stays protected.
No accounts, no email
Veil doesn't ask for your email, phone number, or any identifier. Open the app, start tracking. That's it.
Data boundaries
See exactly what stays on your device, what limited data can leave, and what we never collect. Full transparency, right in the app.
EU-hosted analytics
Optional, anonymous usage stats via Aptabase - EU-hosted, GDPR-compliant, no cookies, no PII. Disable anytime in settings.
Discreet mode
Activate discreet mode and Veil transforms into a generic neutral utility - no pink, no health terms, no period mentions.
Encrypted backups
Want a backup? Export an encrypted file with your own password. Lose your phone, restore your cycle, no third party involved.
Nothing we ask for.
You can't share what we never request. Here's the short list of things that simply aren't part of the deal.
- Your name or email
- Your health data
- Your location or IP
- Your advertising ID (IDFA / GAID)
Discreet mode hides everything.
When you turn on discreet mode, Veil transforms into a generic neutral utility. Pink becomes gray. Period becomes "log entry." Calendar becomes "Planner." Even the tab labels change.
- All accent colors collapse to neutral gray
- Health-related labels swap to generic terms
- Tab labels change (Today → Home, Calendar → Planner)
- Notifications use neutral text
- Full dark mode for comfortable nighttime use
Speaks your
language.
Veil is fully translated into nine languages - including content, insights, notifications, and educational articles. Set it once and forget it.
Simple, honest
pricing.
A generous free tier that actually works. Plus unlocks the deep analysis layer - no dark patterns, no ads, ever.
16 features free, 17 more with Plus. See the full comparison
Veil
Everything most people need for clean, private cycle tracking.
- Unlimited period, flow, symptom & mood logging
- Energy, sleep, water, weight & temperature tracking
- Contraception tracking: pill (with daily streak), hormonal IUD, copper IUD, and implant
- Symptothermal cervical-mucus tracking
- Next period, ovulation & fertile window predictions
- Full calendar with unlimited history
- Cycle quality score & PMDD severity score
- Cervical mucus last-cycle preview with legend
- Amenorrhea flags & health alerts
- Logging streak & prediction accuracy
- Last 5 notes timeline with day viewer
- Biometric + PIN app lock, AES-256 encryption
- Discreet mode & all 9 languages
- Up to 5 custom tags for personal tracking
- Plain JSON, CSV & encrypted backup (manual export)
- No ads. No accounts. Ever.
Veil Plus
Unlock the deep analysis layer - correlations, trends, and exports.
- AI Health Companion - private on-device AI that answers cycle and health questions using your own tracked data
- Pattern Mirror - symptom correlations by phase
- Cycle History deep-dive & multi-cycle comparison
- Observed-vs-predicted ovulation (BBT + peak mucus)
- Cervical mucus heatmap across every cycle
- Long-term cycle trends chart (all cycles, not just 3)
- PMDD severity 6-cycle trend chart
- Energy-by-phase & sleep trend analysis
- Pill adherence cross-cycle chart
- All Notes - searchable journal across every entry
- Full-text search by notes, moods, and symptoms
- Flow distribution & long-term health metric charts
- Health Report PDF - doctor-ready export
- Encrypted on-device auto-backup (carried by your phone's own backup)
- Pattern alert, weekly summary & trial-end notifications
- Unlimited custom tags & priority support
- All future premium features included
Take your cycle
back.
No accounts. No tracking. No compromises. Now on the App Store; Google Play coming soon.