Blood: Period & Cycle Tracker

4.92K reviews
Content rating
Rated for 3+
100K+
Downloads
Content rating
Rated for 3+
Users Interact
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About this app

Newly designed home, avatar, calendar, log period, symptoms, period predictions, ovu, fertility, cal sync and notifications.

Figure out your flow. Worry less. Do more. Backed by science and driven by fun, the Blood period tracker app gets to know you and your body on a deeper level – giving you opportunities to personalise your own period journey, and providing support at every step of your cycle. With a combination of intelligent menstrual cycle tracking, period predictions, health insights, and highly-customisable avatars that reflect your every mood, Blood does more than just track your periods – it’s designed to help you understand your cycle like never before.

TAKE THE GUESSWORK OUT OF YOUR PERIODS
Track your period length, flow intensity, and symptoms, and view your predicted periods and ovulation dates for months in advance. Using machine learning artificial intelligence, our predictions get better over time. The more you log, the more accurate your predictions! Sync your life with your cycle – whether you’re planning for a big date, a sunny getaway, or an important presentation, being able to view future periods will help you know what’s coming.

CUSTOMISABLE AVATARS
Let your inner self shine through with highly-customisable Blood avatars that reflect your every mood. Switch up looks or show how you’re feeling today. Make this period journey truly yours!
LOG YOUR SYMPTOMS & MOODS
Keep tabs on your symptoms such as cramps, bloating, aches, fatigue and insomnia so that you can observe trends and gain overall insights on your health.

INSIGHTS ABOUT YOU, FOR YOU
Your menstrual cycle is made up of more than just PMS and your period. It comes with its own ups and downs according to your hormonal changes – we’re here to help you make sense of everything! The Blood app quickly gets to know all about you, and provides personalised daily tips that go with your flow and guide you on how to benefit from each menstrual phase. Enjoy insights on your mood, energy levels and more so that you can stay informed and take control of your cycle!

GET REMINDERS
Set up and receive reminders for what’s important to you! Want a heads up on your period, fertility or ovulation day? No problem! You even get to add your own personal touch to your reminder message! Keep it secret, include an inside joke, or show some self-love – go ahead and toss in some fun of your own!

SYNC TO YOUR PERSONAL CALENDAR APP
Your period predictions can be synced with third-party calendars (such as Google Calendar or iCal) with just one tap for an overview of what your schedule holds – and how your period may come into the picture! No more switching between apps and struggling to keep track of things. With this integration, you can easily get a glimpse of your flow together with other events so that you can plan your holidays, dates and other activities – worry-free!

USER-FRIENDLY DESIGN
Taking a user-first approach, we’ve given our app a brand new refresh! There’s so much to discover about your cycle and health – this exciting interface makes tracking your period, viewing countdowns, checking on fertility, and getting support a fuss-free and fun experience that you’ll want to keep coming back for.
Cycle Predictions & Calendar. Track flow & fertility, get insights & reminders.
Updated on
Sep 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Personal info, Health and fitness and 3 others
  • This app may collect these data types
    Personal info, Health and fitness and 4 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

4.84K reviews
Bella
September 14, 2026
I've had it for a while, and it was okay. now it doesn't show how many days until my next period and doesn't show anything when I'm currently on my period. I've uninstalled and reinstalled it and checked for updates, nothing fixes it.
1 person found this review helpful
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Wild Strawberry
August 13, 2026
Can't even be open offline. That's a huge problem when you're going to a doctor or on a trip. Otherwise pretty good if you just record your period and don't want to count days yourself.
1 person found this review helpful
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Cat n dog
September 17, 2026
good app but when i log in to a new phone. it did not sync at all . the app told me to create new account !!! . why do i need new acc when i already have it ?
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What’s new

Updates:
+ Bug fixes and performance improvements