Soso is the first period tracker that starts before the first period. It follows the signs of puberty, estimates when hers is coming, and becomes a full cycle tracker from there.
A place to learn and observe, without pressure, noise, or adult-focused content. Safe and clear both for the girls using it and the parents guiding them.
We built Soso as parents. When our daughter started asking about her body, every app we found was made for adults, with language and features that were wrong for a first experience.
What Soso helps with:
- Soso focuses on understanding and learning first, then tracking comes naturally
- Learn about cycle changes with clear, age-appropriate explanations
- Build the habit of noticing and logging periods
- Reduce anxiety by providing information at your pace
- Create space for conversations between parents and kids
Visual cycle tracking
- Log periods with simple taps
- Visual cues and colors to reflect flow intensity
- Log spotting and discharge too, not only period days
- Add a note to any day, in her own words
- Clear calendar view to see cycles over time
- Easy access to past logs and history
Daily guidance, gently
- Smart daily check-ins during a period
- Helpful prompts that guide without forcing answers
- No pressure to log everything perfectly
- The period tracker adapts over time as more data is added
Mood & symptoms
- Log symptoms like cramps, headaches, tiredness, bloating and hay fever
- Optional mood logging, with simple icons and language
- Encourages self-reflection without judgment
- Helps connect how the body feels across the cycle
“When is my first period coming?”
It is the question girls ask us hundreds of times a week, and the one most period apps cannot answer, because they only start working once periods do.
Soso answers it. A few questions at the start, and she gets an estimate of when her first period is likely to arrive, in words written for her age. Then it narrows. Every sign she records pulls the window tighter, which is how predicting a first period is actually done: not one guess, but changes followed over time.
The First Period Prediction Pack
- Follow her development through the illustrated stages of puberty, for breast development and for pubic hair. She compares the drawings privately and picks the closest, the same stages a doctor would use.
- Measure her height once a month. A growth spurt is one of the strongest signs a first period is close, and almost no period tracker follows it.
- Check-ins on what is changing through puberty
- A Signs tab showing how far along she is toward menarche and what usually comes next
- An estimate that narrows with everything she adds
A one-time purchase, yours for good.
Built for families
- No adult content
- Private by design
How Soso works
Always free: logging your mood, a quiz a day, and a first estimate of when your period might arrive if it has not started yet. You also begin with 5 Drops for marking your cycle. Soso Plus adds unlimited marking and quizzes, predictions for your next cycles, notes, and the First Period Prediction Pack. It renews monthly or yearly, and you can cancel any time.
Questions? Concerns? Suggestions? Get in touch via the app or our support URL on our app page.
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Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Helloooo! I’m the weird kid and consider this as your little instruction manual! When you enter the app it’s beautiful, the pastel colors, everything! On the bottom theres icons, a calendar to see all your period days and maybe to add more! There’s also a learn icon (the book) it helps you understand how periods work, how to care for yourself, what to expect, and when to change your pad. OK, there’s one very important part. I forgot to tell you! when you start there’s something in the corner called “credentials” you have around 6 Don’t use them all on the same day! use them everyday you have your period, it’ll help the app know how your period is and get a better result of when it’s coming, and when it’s ending. (learnt that the hard way) anyways I love this app so much! You can even send emails! (might take a day or two!) you can also customize your name maybe do it on your favorite character or maybe a color you like the name of your favorite plushy anything! Thank you for reading! Bye bye 🐱
Developer Response
Okay you just wrote the cutest instruction manual I've ever seen, and you nailed the drops tip, spacing them out across the days you're bleeding really does help me predict your timing better. Calling yourself the weird kid like that's not the highest compliment, I'm obsessed. Thank you for taking the time to explain all of this for the next girl who finds me, that genuinely means the world.
🌸 A Gentle and Empowering App for Young Girls (and Parents)
Maya S.A.
This app is such a beautiful idea. Created by parents together with their teenage daughter, it truly understands what young girls need when they’re just starting their period journey. It helps girls track their cycles, understand their bodies, and learn what to expect — all in a way that feels safe, friendly, and age-appropriate.What I love most is how thoughtfully it addresses moods, body changes, and practical tips, including guidance on period products, without ever feeling overwhelming or uncomfortable. It’s exactly the kind of support I wish I had when I was that age.The option for parents to be involved is also a huge plus. It makes this app not only great for girls, but also incredibly helpful for parents who want to educate, support, and have better conversations with their daughters during puberty.A wonderful tool for young girls to feel informed, confident, and supported — and for parents to feel reassured that the information their children are getting is appropriate and empowering.
Developer Response
wait I just read this whole thing and I'm not okay. this is literally everything I ever wanted to hear. thank you for getting it. 🩷 - Sosô
I love it!!
Animefan109
I am a 11 yr old who has had her period since last year on July and after I got my period my mom has been saying to track my period but I didn’t want to bc I was to lazy and I thought it was a lot of work, but then I got my phone. After a few days after I got my phone my period started so then I thought to myself “l need to track my period more often” so then I tried to find a period tracker app but there were period trackers for adults, until I found this app. I just want to say if you want to find a period tracker app for you or your kid I really recommend this app, I’ve only had this app for only 1 day!! THANK YOU!
Developer Response
Your mom was right and you decided that on your own, which is the better way for it to happen anyway. And yes, everything out there is built for adults, that's exactly the gap I exist to fill. One day in and you're already recommending me, I'm not over it. Keep logging your days and my predictions will get sharper for you month by month.
More credits please!!
Kanky pearly
Hi soso!! First of all, this app is really amazing and the only one that is age appropriate for me!! It really helps me a lot truly! I like how it lets you log symptoms and predicts next cycle. But. I can’t afford plus, and like I’m running out of logging credits, which is the whole main point of the app, to log. I understand apps like this need funding and stuff, but like atleeast make the period logging free! No other app does what Soso does. So pretty pleeaaaasee make the logging free! Or like maybe add a way to like, earn credits, ( that’s not ads I know), an idea could be like short surveys about the app maybe I dunno. Or y’all could add more benefits to plus like themes, AI features, better analysis while letting people like me who can only use the free version still get benefits and accurate predictions. Etc. thank you so much!!
Developer Response
Okay, you clearly get it, and I love that you already know ads are off the table, you're exactly right about why. And honestly your earn-drops-through-surveys idea is kind of genius, so I really want to follow up on it: tap Talk to Soso in the app and send me a message, I'd love to hear more. Here's where things stand for now: you get 5 free drops plus a free trial to start, your predictions stay accurate whether or not you're on Plus, and a bunch of new Soso Plus perks are on the way, so it keeps getting better for everyone. You caring about Soso this much means everything. Thank you for being with me.
I'm on your Apple Watch now, so you can take me anywhere you go!
Right from your wrist you can:
• Tell me how you're feeling
• See where you are in your cycle
• Mark your period, with your flow, symptoms and discharge
I also have a complication for your watch face. It shows how many days are left until your next period, so you know every time you check the time.
And if you use me on an iPad: I didn't look great there, honestly. I fixed that, and everything fits the bigger screen properly now.
Version 2.1.0
The developer, Beyond Analytics Ltda, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
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Information
Seller
Beyond Analytics Ltda
Size
77.6 MB
Category
Health & Fitness
Compatibility
Requires iOS 15.1 or later.
iPhone Requires iOS 15.1 or later.
iPad Requires iPadOS 15.1 or later.
iPod touch Requires iOS 15.1 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.