Bloomy vs Stardust for Teens
Short answer: Stardust is a playful cycle tracker with moon cycles, horoscopes and tarot, loved by older teens and young adults who already have periods. Bloomy is focused on the teen years — it predicts your first period, explains body changes, then tracks your cycle. Want astrology vibes? Stardust. Want to get ready for your first period? Bloomy.
Bloomy vs Stardust at a glance
| Feature | Bloomy | Stardust |
|---|---|---|
| Main focus | First period + teen cycle tracking | Cycle tracking with moon & astrology |
| First period prediction | Yes | No |
| Horoscopes / tarot | No | Yes (Stardust Super) |
| Explains puberty signs | Yes, in simple words | Symptom library (premium Cyclepedia) |
| Free version | Yes + optional upgrade | Yes + Stardust Super |
| Account | Not needed | Check in app |
| Devices | iPhone only | iPhone & Android |
| One app from before your first period through every cycle after | Yes — becomes a full period tracker | Starts only after periods begin |
Stardust facts checked October 2026 from the Stardust FAQ.
One app for the whole journey
Other apps start once periods have started. Bloomy starts earlier and never needs replacing — it's the only period app she'll ever need.
- 1
Before your first period
Bloomy estimates your first-period window from your age and body signs, explains every change in simple words, and helps you pack a school kit so you feel ready.
- 2
The day it starts
Log it in one tap. Bloomy switches itself into a full period tracker — same app, same data, nothing new to download or set up.
- 3
Every cycle after
Period dates, cycle length, next-period prediction, ovulation window, symptoms, cramps, moods and reminders — a complete period and cycle tracker for life.
Different apps for different moments
Stardust describes its free version as robust, with predictions, daily insights and symptom tracking, plus "a little moon magic." Its premium plan adds daily horoscopes, tarot, a symptom library and partner perks. It's genuinely fun — but it assumes you already have a cycle to track.
Bloomy starts earlier. For a 10–13 year old, the big question is "when will my first period come and what are these changes?" Bloomy estimates a first-period window from age and signs (ACOG notes it usually comes 2–3 years after breast development begins) and explains discharge, cramps and moods in plain words.
For parents
If you'd rather your daughter's first period app stick to health facts rather than astrology, Bloomy is the more straightforward choice. It has no account, no ads and keeps data on her phone. Once her period starts, Bloomy is already her full period tracker — no new app needed.
Where Stardust wins
- Android support.
- Playful, social, astrology-themed design many older teens love.
- Lots of daily content if you're into that.
Switching from Stardust?
- ✓ Set up in about 2 minutes — just enter your last period dates
- ✓ No account, no email, no age gate or parent sign-up step
- ✓ Full period, cycle, ovulation, symptom and mood tracking from day one
Sources & further reading
- → Stardust — FAQ (free version, Stardust Super, iOS & Android)
- → ACOG — Menstruation in girls and adolescents
This page is for education only and doesn't replace advice from a doctor.
Track it all in Bloomy — free
Free, private, made for teens. Predicts your first period, tracks every cycle after.