Best Know alternatives: apps like Know•

8+ similar apps compared and reviewed

4.6 avg rating
8 free apps
Updated November 2026

Know is great, but it's not the only option. Explore 8+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Know

Period Tracker & Woman Health#2
4.3(3 ratings)
FreeAds
Period Tracker & Woman Health screenshot 1
Period Tracker & Woman Health screenshot 2
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Period Tracker & Woman Health screenshot 5

Easily track your menstrual cycles, predict future periods, and view fertile days. This app helps you log your period start dates, calculate averages, and visualize your cycle on a calendar. It also tracks moods and symptoms, and indicates days until your next period or if it's overdue.

More apps like Know

4
One Period Tracker & My Health
One Period Tracker & My Health
One Period Tracker & My Health
Menstrual Cycle Calendar App
Free

This app offers accurate period and fertility predictions using advanced AI. It allows users to easily log cycle data, track various health aspects, and customize tracking categories for a personalized health overview. The app also provides a diary to review past entries and prepare for doctor's appointments.

Accurate period and fertility predictionsEasy logging of cycle dataTrack 15+ health categories
💪 Health & Fitness
(300)
free with in-app purchases
5
Period Diary: Privacy First
Period Diary: Privacy First
Period Diary: Privacy First
No account. No cloud. Privacy.
Free

This app offers a simple and private way to track your menstrual cycle, ovulation, and fertility. It provides accurate predictions for future periods and fertile windows, learning from your logged data. Get notifications for important cycle events and understand your reproductive health without needing an account.

Private data, no account neededAccurate period and ovulation predictionsLearns from logged cycle data
💪 Health & Fitness
(429)
free with in-app purchases
6
Period - period tracker
Period - period tracker
Period - period tracker
Inclusive. Private. No ads.
Free

This app offers private and ad-free tracking for menstrual cycles and related health data. It allows users to log various details, set reminders, and gain insights into their bodies. An optional subscription provides cloud backup and cross-device syncing.

Comprehensive health data trackingPrivate and ad-free experienceCustomizable reminders
💪 Health & Fitness
(537)
freemium
7
Period Tracker: Menstrual Flow
Period Tracker: Menstrual Flow
Period Tracker: Menstrual Flow
Ovulation Calendar & Fertility
Free

This app helps users track their menstrual cycles, predict ovulation, and log various health data. It offers discreet reminders and robust data protection with password and biometric authentication. Users can also back up their data to iCloud and sync with the Apple Health app.

Track menstrual cyclesPredict future periods and ovulationLog weight, temperature, symptoms, and moods
💪 Health & Fitness
(178)
free with in-app purchases
8
Her Calendar: Period Tracker
Her Calendar: Period Tracker
Her Calendar: Period Tracker
Ovulation & Cycle Tracker
Free

This app helps women track their menstrual cycles, ovulation, and fertile windows. It offers accurate predictions and daily logging for moods and symptoms, all while prioritizing user privacy with local data storage and security features.

Period and fertility predictionDaily mood and symptom loggingPrivacy-focused local data storage
💪 Health & Fitness
(62)
freemium