Period Tracker & First Period Predictor made for teens
Bloomy predicts when your first period will start, tracks every sign along the way, and grows into a full cycle & ovulation tracker once it arrives. Made just for teens.
Everything a teen needs — in one app
Bloomy stays with you from the very first sign to every cycle after.
First period predictor
Personalized countdown to your estimated first period based on age and signs.
Cycle & ovulation tracker
Once your period starts, log cycles, ovulation, and fertility windows automatically.
Mood & symptom log
Track cramps, mood, discharge, headaches — understand your body better.
Private & secure
No account needed. Your data stays on your phone. No selling, ever.
How Bloomy works
Tell Bloomy about you
Enter your age, height, and any signs you've noticed — takes 60 seconds.
Get your prediction
See your personalized first period window and daily countdown.
Track every cycle after
When your period arrives, Bloomy switches into a full cycle & ovulation tracker.
Bloomy vs. other period trackers
| Feature | Bloomy | Flo / Clue |
|---|---|---|
| Predicts first period before it starts | ✓ | ✗ |
| Designed specifically for teens | ✓ | ✗ |
| Cycle & ovulation tracking after first period | ✓ | ✓ |
| Free to download & try | ✓ | ✓ |
| Data stays on your phone | ✓ | Cloud |
| No account required | ✓ | Required |
Loved by teens (and their parents)
"I finally know what to expect. The countdown makes it less scary."
— Maya, 12
"Got this for my daughter and we use it together. Such a smart idea."
— Parent, App Store review
"Way better than Flo for someone my age. Easy and cute."
— Ava, 14
Why teens choose Bloomy as their period tracker
Most period tracker apps assume you already have a regular cycle — which doesn't help the millions of tweens and teens waiting for their first period. Bloomy fills that gap. It's the only free period predictor built specifically for teens that predicts your first period, walks you through the signs to look for, and then grows into a complete menstrual cycle tracker the moment your period arrives.
Whether you're a 10-year-old wondering when it's coming, a 13-year-old just starting out, or a parent looking for the best period tracker app for your teen — Bloomy meets you where you are. Download free on the App Store and join over 10,000 teens who feel more prepared, more confident, and more in control.
Made by Sofia and the Bloomy team in 2026 — with medical guidance from ACOG, NHS, and Cleveland Clinic. Have a question? Email us at itsherbrilliance@gmail.com.
Frequently asked questions
Is Bloomy free?+
Yes. Bloomy is free to download and use. Core features — first period prediction, cycle tracking, symptom logging, and reminders — are all included at no cost.
What is the best period tracker app for teens?+
Bloomy is designed specifically for teens. Unlike adult-focused apps like Flo or Clue, Bloomy works before your first period arrives — predicting when it will start based on age, family history, and early signs, then converting into a full cycle tracker once your period begins.
How does Bloomy predict a first period?+
Bloomy uses your age, height, weight changes, and early puberty signs (breast development, discharge, mood changes) alongside medical averages to estimate a personalized window for your first period. Most girls get their first period between 10 and 15, around 2 years after breast development begins.
Is my data private?+
Yes. Your cycle data stays on your device by default. Bloomy never sells your data. No account required to start tracking.
Can parents use Bloomy with their daughter?+
Absolutely. Many parents download Bloomy together with their tween or teen to help them understand what's coming, learn the signs, and feel prepared.
Does Bloomy track ovulation and cycles after the first period?+
Yes. Once your period starts, Bloomy automatically becomes a full menstrual cycle tracker — logging periods, PMS, mood, ovulation windows, and symptoms over time.