Otty is the period tracker for couples that works just as well solo. Track your cycle or your partner's, and get one clear tip a day on what helps.
Be the partner they brag about.
Otty is a period tracker and cycle tracker built for couples that works just as well solo. At its core it's a complete period tracker: map your phases, log how you feel, and understand your own cycle, no partner required. And when there is someone who loves you, Otty helps them show up right.
If you track your own cycle, you get the full toolkit on your own: phase mapping, quick daily check-ins, symptom patterns, and a personal comfort kit. If you track your partner's, you get specific phase-aware tips so you stop guessing what helps. If you pair up, everything connects: check-ins, comfort preferences, love notes, and nudges reach the right person at the right time.
No lectures, no clinical charts, no daily chores. Just warm, witty help from a ridiculous little otter who wants you both to be happy.
WHAT YOU GET
Comfort Coupons (NEW)
Grant real promises, from "one blanket-burrito evening, no questions asked" to a fully planned date. Your partner keeps them in a wallet and cashes one in when it's needed, you get the nudge to deliver, and honored coupons become keepsakes. Star the ones you'd love to receive, or write your own.
Deck Night
300 original conversation cards across six decks, made to be played together on one phone. Warm-Up asks the silly icebreakers, How Well Do You Know Me runs guess-then-reveal rounds, Desire brings the slow-burn questions. Pick a quick round or a full session, and Otty points out the deck that fits the phase.
Comfort Menu
Say what actually helps once, phase by phase, from the exact snack to the things to skip. Your partner sees the right list at the right time, in your words instead of guesses. Every item can be shared or private, you can hide the whole menu whenever you want, and a tap of the heart shows what's handled. No partner? It doubles as your personal comfort kit.
Daily Check-Ins & Your Patterns
Log mood and symptoms in seconds. Otty responds to every check-in, adapts today's playbook to what you logged, and after two cycles reveals your real patterns by phase.
Period & Cycle Tracking
See which phase it is, from period days to PMS-sensitive days to higher-energy windows. The calendar marks estimated ovulation, the expected period start, and your milestone dates, with a guide in plain language.
Daily PMS & Period Tips
Specific, phase-aware period tips delivered fresh every day, whether the cycle is yours or your partner's. Not generic relationship advice. Real things you can do right now: "Have her comfort order ready before she asks."
Date Ideas & Nudge Activities
Spin the Let's Roll gumball machine for tonight's plan, with a lineup that matches the phase: cozy on period days, romantic in the higher-energy window.
Smart Notifications
One phase-aware daily reminder at 7 AM, plus partner messages when you pair, including a gentle heads-up when your partner logs a rough day. More reminders can be turned on in Settings.
Love Notes
Write a love note once and schedule it to land right when your partner could use it.
Relationship Milestones
Add anniversaries, first dates, and special moments. Otty counts down and celebrates with you.
HOW IT WORKS
1. Enter the last period start date and cycle length, yours or your partner's
2. Otty maps the cycle phases, preps daily tips, and learns from your check-ins
3. Solo or paired, use Comfort Coupons, Deck Night, the Comfort Menu, nudges, and love notes to show up like a legend
YOUR DATA IS SAFE
Your cycle data is stored locally by default. Sign-in is optional and used for cloud backup, partner pairing, profile photos, and cross-device sync. Partner sharing is always opt-in and item-by-item: you decide exactly what your partner sees, and you can change it anytime, with no notifications sent. Subscription verification and shared partner features require network access. We never sell your data. Your period and cycle information stays private and secure.
Download Otty. Never drift apart.
Obsessed with this app even as a single girl just tracking my period. It makes everything I ever guessed about my cycles way more clear and predictable. It’s been spot on. Not to mention it’s just so cute and makes me happy every time I open it. I used to use Flo to track but Otty is way better.
Developer Response
So glad Otty is making your cycles feel clearer and more predictable, and that the predictions have been spot on. Finding something you're actually happy to open means a lot. Thank you.– Otty 🦦
Tracking the things that Matter!!!!!
NnnnnJess
I don’t have a partner to share this with just yet, but after using Otty, I already love it! It’s a great way to check in with my cycle and someday, a great way to see just how thoughtful and willing my future partner is to understand it too. Love this app!
Developer Response
So glad Otty is a good way to check in with your own cycle. Whenever the day comes to share it, everything will be ready. Thank you for this lovely review.– Otty 🦦
Best app
Oriany
The fact that this is built for both people and not just the girl is everything. My partner checks it on his own now, and he actually knows what my body is going through and what to do!!! Finally where has this been all my life
Developer Response
Thank you, this is the kind of review that stays with us. Otty was always meant for both people in a relationship, so knowing your partner now understands what you're going through and how to help means more than we can say.– Otty 🦦
Love this app
Davidb332
honestly downloaded this just to make my girlfriend happy lol but now i actually check it every morning. knowing what phase she's in changes everything. i used to think she was just randomly upset with me sometimes but now it all makes sense.
Developer Response
This kind of note means a lot to us. Coming in to make your girlfriend happy and ending up checking every morning yourself is honestly the whole goal. Thank you for writing it.– Otty 🦦
This update gives Otty a fresh look and a smoother start.
• The app icon and opening screen have a brand-new look.
• Setup is rebuilt from scratch: tell Otty whose cycle it is and what you want help with, and the whole app shapes itself around your answers.
• Before your free trial starts, Otty now walks you through exactly how it works, day by day.
• Otty the otter now keeps animating even in Low Power Mode.
Version 1.0.23
The developer, SAGI LEVY, 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 Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Purchases
Contact Info
User Content
Identifiers
Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
User Content
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More