Best Natural Cycles Apps

250+ iOS apps curated and reviewed

4.9 avg rating
20 free apps
Updated September 2026

Looking for free natural cycles apps? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Natural Cycles Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Natural Cycles: Fertility AppNatural Cycles: Fertility AppFree4.8★ (30K)YesYesSep 2026
2Flo Cycle & Period TrackerFlo Cycle & Period TrackerFree4.7★ (2M)NoYesSep 2026
3Lively - Period Tracker, CycleLively - Period Tracker, CycleFree4.8★ (51K)NoYesSep 2026
4Clue Period & Cycle TrackerClue Period & Cycle TrackerFree4.8★ (404K)NoYesSep 2026
5Stardust Period TrackerStardust Period TrackerFree4.8★ (117K)YesYesSep 2026
6Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (90K)NoNoSep 2026
7Phases: Cycle SyncingPhases: Cycle SyncingFree4.5★ (2)NoYesSep 2026
8Premom-Ovulation Tracker, PCOSPremom-Ovulation Tracker, PCOSFree4.8★ (59K)NoYesSep 2026

Top Picks for Natural Cycles

Natural Cycles: Fertility App#1

Natural Cycles: Fertility App by NaturalCycles Nordic AB

Ovulation Tracker・FDA-cleared
Editor's Choice
💪 Health & Fitness
4.8😊(30K ratings)
FreeAdsIn-App Purchases
#37in Health & Fitness
Natural Cycles: Fertility App screenshot 1
Natural Cycles: Fertility App screenshot 2
Natural Cycles: Fertility App screenshot 3
Natural Cycles: Fertility App screenshot 4
Natural Cycles: Fertility App screenshot 5
Natural Cycles: Fertility App screenshot 6

This app helps women track their hormonal health and fertility using body temperature data. It offers hormone-free contraception, pregnancy planning, and insights into various cycle stages. It adapts to individual cycles, even irregular ones, providing daily fertility status.

What We Love

  • 👍 Teaches users about their cycle
  • 👍 Helps users understand their body
  • 👍 Provides a natural contraceptive option
  • 👍 Accurate in predicting ovulation and periods
  • 👍 Empowers users to take control of their fertility
  • 👍 Improves mood and reduces side effects compared to hormonal birth control
  • 👍 Useful for both preventing and planning pregnancy
  • 👍 Detailed data and insights about user's cycle

Room to Improve

  • 🐛 Inconsistent in predicting ovulation and periods for some users
  • 🐛 Thermometer issues (loud, hard to read, no Bluetooth connectivity)
  • 🐛 Difficult to use for users with irregular cycles or disrupted sleep schedules
  • 🐛 Lack of customer support responsiveness
  • 🐛 Automatic subscription renewal issues and no refunds
  • 🐛 Algorithm not always accurate, leading to unintended pregnancies
  • 🐛 Cluttered and unintuitive app interface
Flo Cycle & Period Tracker#2

Flo Cycle & Period Tracker by FLO HEALTH UK LIMITED

Ovulation & Pregnancy Calendar
Strong Contender
💪 Health & Fitness
4.7😐(2M ratings)
FreeIn-App Purchases
#3in Health & Fitness
Flo Cycle & Period Tracker screenshot 1
Flo Cycle & Period Tracker screenshot 2
Flo Cycle & Period Tracker screenshot 3
Flo Cycle & Period Tracker screenshot 4
Flo Cycle & Period Tracker screenshot 5
Flo Cycle & Period Tracker screenshot 6

This app helps women track their menstrual cycles, ovulation, and fertility. It offers personalized insights, pregnancy support, and tools for managing perimenopause symptoms, with a focus on data privacy and security.

What We Love

  • 🚀 Accurate period predictions
  • 📊 Helpful insights and information
  • 🤝 Supportive community
  • 🗓️ Useful tracking features
  • 💻 Great app design and interface
  • 🤰 Useful pregnancy mode

Room to Improve

  • 💰 Excessive push for premium subscription
  • 🔒 Privacy concerns around data sharing
  • 🤖 Lack of inclusivity for non-binary users
  • 🚫 Paywall for basic health information
  • 🙄 Annoying notifications and ads
  • 🤔 Inconsistent predictions and tracking
Lively - Period Tracker, Cycle#3

Lively - Period Tracker, Cycle by Lively Cycle, LLC

Ovulation & Pregnancy Calendar
Worth Considering
💪 Health & Fitness
4.8😐(51K ratings)
FreeIn-App Purchases
#46in Health & Fitness
Lively - Period Tracker, Cycle screenshot 1
Lively - Period Tracker, Cycle screenshot 2
Lively - Period Tracker, Cycle screenshot 3
Lively - Period Tracker, Cycle screenshot 4
Lively - Period Tracker, Cycle screenshot 5
Lively - Period Tracker, Cycle screenshot 6

This app helps you understand and align with your body's natural cycle. It provides personalized daily tips for nutrition, exercise, and self-care based on your menstrual phase. It also supports pregnancy and postpartum journeys, and offers a unique partner syncing feature.

What We Love

  • 💕 Lovely design
  • 🤝 Partner syncing feature
  • 📚 Informative cycle insights
  • 🌱 Helpful food and activity suggestions
  • 🙌 Life-changing for some users

Room to Improve

  • 💰 Expensive subscription
  • 🤔 Limited free features
  • 🔍 Lack of symptom tracking
  • 🕰️ Inaccurate cycle predictions
  • 🤖 Poor customer support

More Natural Cycles apps to explore

FAQ about Natural Cycles

What are the best natural cycles apps for iPhone?
Natural Cycles: Fertility App tops our natural cycles apps ranking as of September 2026, with a 4.8-star average from 30K App Store ratings, and it's free to download.
Yes — 20 of the top natural cycles apps we rank are free to download, including Natural Cycles: Fertility App and Flo Cycle & Period Tracker.
Natural Cycles: Fertility App shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ natural cycles apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The app uses your body temperature to track ovulation, helping you identify fertile days for preventing or planning pregnancy. It offers a hormone-free contraception method and provides insights into different stages of your reproductive health, including postpartum and perimenopause.
The app is scientifically proven to be 93% effective with typical use and 98% effective with perfect use. It's important to note that no birth control method is 100% effective, and it does not protect against STIs.

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