Your cycle is nobody's business.
iWoman has kept period tracking on your phone — and only your phone — since October 2008. No account. No cloud. No subscription.
- Since 2008
- 4.6 ★ · 514 ratings
- 28 languages
- 9.85 MB
- Data Not Collected
“Data Not Collected” is Apple's wording on our App Store privacy label, not ours.
Lots of apps with false promises. Ours hold.
Privacy became a marketing line around 2021. Here is what is different when it has been true for 17 years.
01
No account, because there’s nothing to log into.
iWoman has never had a server that stores your cycle. There is no database with your name in it, because there is no database.
02
Held since before it was a selling point.
Our App Store privacy label has read “Data Not Collected” since Apple introduced labels in 2020. The app has worked this way since 2008.
03
You can leave with your data.
Export everything to a file you keep, encrypted with a password we don’t have. No app should hold your history hostage — including ours.
04
You paid us. That’s the business model.
iWoman costs $2.99, once. That is the entire revenue model, and it is printed on the App Store page. A free period tracker has to make money some other way. It is worth asking what way.
Try the prediction before you buy the app.
This is the app's actual algorithm, running in your browser. Change the numbers. Nothing you type is sent anywhere — there is nowhere to send it.
Drag the handle around the ring
- Period
- Fertile window
- Luteal phase
- Ovulation
Example: on cycle day 8 of a 28-day cycle, the next period is predicted in 21 days, ovulation around day 15, and the fertile window runs from day 10 to day 17.
- Next period
- 2026-03-29
- Estimated ovulation
- Day 15
- Fertile window
- Day 10 – 17
- Requests made
- 0
Everything above is computed in your browser using the same algorithm as the app — the Knaus–Ogino window with a 14-day luteal phase, five days of sperm survival and two of egg survival. Nothing you type here is sent anywhere, stored, or remembered after you close the tab.
iWoman is a tracking tool, not a medical device. Predictions are estimates and are not a form of contraception.
17 years, one unbroken line.
In 2008 there was nowhere to put your cycle data but the phone in your hand. Everything about how iWoman handles it has stayed exactly where it started.
-
2008
The circle
10 October 2008, three months after the App Store opened
-
2012
Export
Full import and export of your history to a text file.
-
2015–2016
28 languages
Added one release at a time because people asked.
-
2020
Privacy labels
iWoman’s reads “Data Not Collected”. Nothing had to change.
-
2026
v3.8
28 languages · 9.85 MB · iOS 17.0+
2008
The circle
10 October 2008, three months after the App Store opened
2012
Export
Full import and export of your history to a text file.
2015–2016
28 languages
Added one release at a time because people asked.
2020
Privacy labels
iWoman’s reads “Data Not Collected”. Nothing had to change.
2026
v3.8
28 languages · 9.85 MB · iOS 17.0+
The app itself.
Seven views from the current app, in a plain white frame.
-
01 Circle -
02 Calendar -
03 Cycles -
04 Temperature -
05 Extras -
06 Customisation -
07 Dark mode -
08 Colours
01 · Circle
What it does.
- Log a period in one tap
- Open it when it starts, close it when it ends. Nothing else required.
- Know where you are
- The circle view shows your current cycle day and the days until your next period, at a glance.
- Predictions that adjust
- Recalculated every time you log, over as many past cycles as you choose.
- Basal temperature
- Two decimal places, and a real graph rather than a decoration.
- Insights, computed on your device
- Cycle trends, variation and symptom patterns. The analysis runs on your phone, because that is where the data is.
- Track only what you want
- Sixteen categories, every one switchable. iWoman doesn’t nag you to log things you don’t care about.
- Locked
- Face ID, Touch ID or your device passcode.
- A widget that doesn’t out you
- Home and Lock Screen, with a discreet mode for shared devices and glances over your shoulder.
- Whatever stage you’re in
- Cycling, pregnant, postpartum or perimenopause — the app follows, instead of assuming.
- Your data, portable
- Encrypted export, plus PDF and CSV reports to hand your doctor.
Why people stay.
Real App Store reviews, quoted as written. We don't use stock photographs of people and call them customers.
“Been helping me keep track of my cycle for years. Whether it’s for my own knowledge or for the use of my doctor.”
“I’ve been using iWoman for the last 3 years and it’s a perfect app.”
“I am a long time user of this app. It adapts itself to my cycle and is very easy to use. I depend on it.”
$2.99. Once.
No subscription. No advertising. No premium tier, no consumables, nothing to unlock later. You buy the app and you own the app, the way software used to work.
If you bought iWoman years ago, every update since has been free, and that isn't changing.
Everything included
- Cycle tracking, calendar and predictions
- Circle view and cycle-day counter
- Basal temperature with a real graph
- On-device insights and statistics
- PDF and CSV reports for your doctor
- Encrypted export of your full history
- Face ID lock and Lock Screen widget
- 28 languages
Price shown for the US store. Regional pricing applies.
Made in Austria, by people you can email.
I've been building iWoman since 2008. It is not a venture-funded data business and it never has been — it is a small independent studio in Austria, and I answer the support mail myself. If something is broken, telling me works.
Stefan Eipeltauer · FOKUS KIND Medien · Austria