Track your cycle, know your body
Tracking is the #1 tool for understanding PMS. Here are the apps we think are worth a look, compared side by side.
Why track at all?
When you log your period, symptoms and moods every day, patterns appear. You'll see when PMS usually starts, which symptoms show up, and whether changes like more sleep or less caffeine are working. It's also exactly what a doctor will ask for.
Girl Harmony
A period and cycle tracker with a warm, friendly feel. Log your period, symptoms and moods in seconds, see what your cycle is likely to do next, and talk things through with "Bestie," its built-in AI wellness companion.
- Fast period, symptom and mood logging
- Cycle predictions and PMS prep
- An AI companion to talk it through
Not an ad: WePMS earns nothing from this app. No commissions, no payouts, no payments of any kind.
Clue
Made in Berlin, Clue is known for its clean design and careful, science-based approach. You can track many categories, from pain and energy to mood and sleep, and read clear explanations of what's happening in your body.
- Period, PMS and fertile-window predictions
- Tracks lots of symptoms and moods
- Covered by strict European (GDPR) privacy laws
- Free, with an optional paid "Clue Plus"
Flo
One of the most downloaded period apps in the world. Flo predicts your period, PMS and ovulation, and offers a large library of health articles created with medical experts.
- Period, PMS and ovulation predictions
- Big library of expert-reviewed articles
- "Anonymous Mode" for extra privacy
- Free, with a paid Premium tier (some articles are Premium-only)
Side by side
| App | Best for | Price | Standout | Get it |
|---|---|---|---|---|
| Girl Harmony | A warm, friendly, "talk it through" feel | Free to download | AI "Bestie" companion | Google Play |
| Clue | Detailed, science-minded tracking | Free + Clue Plus | Clear science and EU privacy rules | helloclue.com |
| Flo | Lots of articles and predictions | Free + Premium | Huge article library, Anonymous Mode | flo.health |
Prices and features change. Check each app's store page for the latest. We don't earn anything from any app listed.
🔒 Protect your privacy
Read the privacy settings
Look for options like anonymous mode, and turn off data sharing you don't want.
Share only what you need
You don't have to fill in every field. Track what helps you.
Lock your phone
Use a passcode, and an app lock if the app offers one.
Paper works too
A simple calendar or notebook is a private, effective tracker.