Sathi: Period & Menopause
Cycle tracker & perimenopause
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
One app for your whole hormonal life. Track your period in your 20s and your perimenopause symptoms in your 40s - privately, on your own device.
Sathi is a calm, private companion for your whole hormonal life - from your first period through perimenopause and beyond.
Most apps make you switch. One for tracking your cycle in your twenties, another one when things start changing in your forties. Sathi is both, and it follows you between them.
TRACK YOUR CYCLE
- Log period start and end, flow intensity, and pain on a 0-10 scale
- A colour-coded calendar of your logged cycles and your predicted next period
- Predictions come with a confidence range, so you know how sure they are
- An informational fertile-window estimate
PERIMENOPAUSE, PROPERLY
- Track hot flashes, night sweats, sleep, brain fog, mood and cycle changes
- Watch how symptoms move over weeks and months, not just today
- Built for irregular cycles, when a single "next period" date stops being the point
A 30-SECOND CHECK-IN
Mood, energy, sleep and cramps in a few taps. Log from the Home Screen widget, from Apple Watch, or by asking Siri.
INSIGHTS THAT WAIT FOR SIGNAL
Sathi surfaces a pattern when there is one - cycle length trends, pain trends, symptom frequency, sleep quality. No filler cards to make the screen look busy.
APPLE HEALTH, ON YOUR TERMS
Optionally read sleep and heart rate from Apple Health for better context, and write your period days back so the rest of your iPhone stays in sync. You choose every data type, one by one. It is off until you turn it on.
PRIVATE BY ARCHITECTURE
- Your logs are encrypted on your device before they ever leave it
- Optional cloud sync stores ciphertext only - we cannot read your entries
- Lock Sathi behind Face ID or Touch ID
- Export everything as a file, or delete your account and all its data, from Settings
- No ads, no ad trackers, and we never sell your data
AVAILABLE IN
English, Spanish, French, German, Italian, Dutch, Japanese, Korean, Arabic, Hindi and Bangla.
SATHI PRO
An optional subscription unlocks doctor-ready reports, symptom correlations, your full history and multi-device sync. Core tracking stays free.
IMPORTANT
Sathi is a wellness app. It is not a medical device, it does not diagnose or treat any condition, and the fertile-window estimate is provided for information only - it is not a method of contraception. Talk to your doctor about any question related to your health.
SUBSCRIPTION
Sathi Pro is an auto-renewing subscription, offered monthly or annually. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel it in your Apple Account settings.
Terms of Use: https://sathidays.com/terms
Privacy Policy: https://sathidays.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, D-bug Station Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- D-bug Station Limited
- Size
- 33.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 10 more
- English, Arabic, Bengali, Dutch, French, German, Hindi, Italian, Japanese, Korean, Spanish
- Age Rating
13+
- 13+
- This app is rated 13+ with content restrictions.
Some content may be rated higher, and may therefore be restricted and managed by the developer through in-app controls. - In-App Controls
Age Assurance
Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- One Year Premium $49.99
- One Month Premium $9.99
- Copyright
- © 2026 Sathi Days Ltd.
