Best period tracker app for teens: private, simple, parent-friendly picks
The best period tracker app for teens keeps data private, needs no account, shows no ads and fits the teen's age. Apple Health's built-in Cycle Tracking is free and already on iPhone. Drip is free, open source and keeps data on the phone. Clue and Flo are rated 13+ and use accounts. For an 11-year-old, a built-in tracker or a paper calendar is often simplest.
What makes a period tracker app good for teens
Tracking periods is a great habit to start early. Cycles are often irregular for the first couple of years: ACOG notes that cycles in teens typically run 21 to 45 days, and a log helps a teen (and her doctor) see what's normal for her. But a teen's needs are different from an adult trying to conceive. We judged apps on five things:
- Privacy: how little data leaves the phone, whether an account is needed, and whether the App Store label lists data used to track you.
- Age fit: the App Store age rating and whether content is about periods rather than sex and pregnancy.
- No ads: health apps shouldn't put ads in front of young users.
- Simplicity: quick to log, easy to read, no pressure to upgrade.
- Parent-friendly: easy to talk through together, with a passcode option.
Period tracker apps for teens compared
| App | Cost | App Store age rating | Account and data | Good for teens because | Watch out for |
|---|---|---|---|---|---|
| Apple Health Cycle Tracking | Free, built into iPhone | Part of iOS | No extra account; Health data is encrypted on a locked iPhone | Nothing to download, simple period predictions, alerts for unusual patterns | Includes fertile window estimates; choose which notifications to turn on together |
| Drip | Free, open source, no ads | 13+ | No data collected per its label; data stays on the phone | Private, password lock, no upsells | Plain design; fertility charting is more than most teens need |
| Euki | Free, no ads | 13+ | No data collected per its label; stored only on the phone | PIN lock, scheduled deletion | Built around sexual health, better for older teens |
| Clue | Free tier, Clue Plus subscription | 13+ | Account; label lists Identifiers as used to track you | Clear, science-based articles about puberty and periods | Upgrade prompts |
| Flo | Free tier, Flo Premium subscription | 13+ | Account or Anonymous Mode; label lists several data types used to track you | Big content library | Upsells, and a 2021 FTC order over sharing health data |
| Lulu | 3-day free trial, then a yearly subscription | Check the listing | No account, no ads, cycle data stays on the iPhone | Playful bunny, one-tap mood check-ins that help her see how her cycle affects her mood | Not free; iPhone only; shows fertile window estimates |
Age ratings and privacy labels are from each app's US App Store page in October 2026. Labels are the developers' own statements, which Apple doesn't verify.
Best period tracker app for a teenage girl, free
If cost matters, the strongest free choices are Apple Health Cycle Tracking (already on her iPhone, nothing to sign up for) and Drip (free, open source, no ads, data stays on the phone). Both let her log periods and symptoms and see when the next one is likely. Clue's free tier is a good option for a teen who loves reading about how her body works, as long as you're both comfortable with an account. Our full free period tracker roundup compares them in more detail.
Period tracker app for an 11-year-old
Periods can start as young as 8, and most start around 12, the NHS says. Most standalone period apps, including Drip, Euki, Clue and Flo, are rated 13+ on the App Store, so they aren't designed for younger children. For a tween, simpler is better:
- Apple Health's Cycle Tracking, set up together on her phone, with only period reminders turned on.
- A paper calendar or our [printable period tracker](/tools/period-tracker-printable), kept in a drawer or school bag. Writing it down works brilliantly at this age.
- A quick check with our [period calculator](/tools/period-calculator) to estimate the next period, with nothing to install.
A parent's privacy checklist
- Open the app's App Store page and scroll to App Privacy. "Data Not Collected" is the gold standard.
- Check whether it needs an email or account. Fewer accounts means less data in more places.
- Look for ads and in-app purchases. Turn on Ask to Buy in Family Sharing so you approve any purchase.
- Set a passcode on the phone, and an app lock if the app offers one.
- Talk about it together: what she logs is hers. Respecting that builds the trust that makes her come to you with questions.
Your period data is personal. You don't need to share it with anyone you don't want to. A good app never asks for more than it needs to do its job.
Moods, too
Teens often notice feeling more tired, teary or irritable in the days before a period, and it helps a lot to learn that it's a pattern, not a personal failing. Logging feelings alongside periods turns "I don't know why I'm like this" into "oh, it's that week". Our guide to mood swings before a period explains why.
When a teen should see a doctor
See a doctor if periods haven't started by 15 (or by 13 with no other signs of puberty), if a period lasts more than 7 days, if she soaks a pad or tampon every 1 to 2 hours, if cycles are more than 45 days apart or stop for 3 months after they'd settled, or if pain keeps her from school. If low moods before periods feel overwhelming or she ever feels unsafe, talk to a doctor straight away; in the US, call or text 988.
Frequently asked questions
What is the best period tracker app for teens?
One that is private, ad-free and age-appropriate. Apple Health Cycle Tracking and Drip are free and keep data on the phone; Clue is a good fit for teens who want lots of articles.
Is there a free period tracker app for a teenage girl?
Yes. Apple Health's Cycle Tracking is free and built into iPhone, and Drip is free, open source and has no ads.
Can an 11-year-old use a period tracker app?
Most period apps are rated 13+ on the App Store. For an 11-year-old, a built-in tracker set up with a parent, or a paper calendar, is usually the best start.
Are period apps safe for teens?
Some are very private and some share data for advertising. Check the App Store privacy label, avoid apps that need lots of personal details, and choose ones without ads.
Is it normal for a teen's periods to be irregular?
Yes. In the first couple of years cycles often vary between about 21 and 45 days. If gaps are longer or periods are very heavy, see a doctor.
Sources
- ACOG: Menstruation in Girls and Adolescents: Using the Menstrual Cycle as a Vital Sign
- NHS: Starting your periods
- Apple Support: Track your period with Cycle Tracking
- drip. period & cycle tracker on the App Store (US)
- FTC: FTC Finalizes Order with Flo Health (June 2021)
This page is for information only and isn鈥檛 medical advice. If something worries you, please talk to a doctor.
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