Comparison

Clue Period & Cycle Tracker vs Eveline Ovulation Cycle Track

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Clue Period & Cycle Tracker

This app helps women and people with cycles understand their bodies through period tracking, fertility predictions, and health insights. It offers personalized forecasts, tracks over 100 experiences, and provides science-based content. Connect wearables for advanced health analysis.

Highlights
  • Personalized period predictions
  • Track 100+ cycle-related experiences
  • Fertility and ovulation calculator
  • Pregnancy tracking with weekly updates
  • Perimenopause symptom tracking
  • Connect wearable data
  • Science-based health content
Read full description

Understand your body. Plan around your cycle. Know what’s coming next. Clue is the #1 women-led period and cycle tracker – science-backed, privacy-first, and built to help you live in sync with your cycle. Trusted by millions of people worldwide, Clue gives you the knowledge and personalized insight to make confident health decisions, from first period to perimenopause. Headquartered in Berlin, your data is protected by strict European privacy law (GDPR). Track your period and cycle Know when your period is coming, and get personalized predictions based on your unique cycle length, flow, and patterns. See how your cycle affects how you feel Track 200+ symptoms and experiences – cramps, PMS, pain, energy, cravings, mood, skin, sleep, sex drive, discharge, and more. Your patterns, in clear charts. Get ahead of symptoms See what might be coming, from PMS and cramps to energy dips, so you can plan ahead. Set custom reminders so nothing catches you off guard. Understand your fertility Get personalized ovulation and fertile window predictions, based on a clinically-validated algorithm designed to help you conceive. Stay on track with birth control Log your method – pill, IUDs, ring, patch, and more. Track your cycle symptoms even without regular bleeding. Get real answers, backed by science Explore 400+ articles on your cycle, fertility, sex, pregnancy, perimenopause, and reproductive health. Use Clue through every life stage Switch between modes as your needs change. Period tracking, trying to conceive, pregnancy, and perimenopause. Connect a wearable Layer your cycle data with temperature, sleep, and heart rate for deeper health insights. Works with Apple Watch, Oura, WHOOP, Withings, Fitbit, and more. Get more from every cycle with Clue Plus — deeper analysis, advanced predictions, and personalized insights that get smarter the more you track. A few legal details: After you choose the Clue subscription that’s right for you & confirm your purchase, the credit card associated with your iTunes Account will be charged. Once purchased, your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. If you currently have a free trial, any unused time will be forfeited when you purchase a subscription. If you want to renew your subscription, your account will be charged the same amount you paid for your initial subscription, 24 hours before the end of the current period. You can manage or change your subscription at any time, including turning off auto-renewal, by going to the ‘Account Settings’ on your device after the purchase. Note: Clue should not be used as a contraceptive. Clue is made to help people understand their menstrual and reproductive health by tracking their data, as well as predicting fertile days to aid conception. The app does not substitute professional medical advice, diagnosis, or treatment. Your healthcare provider can give you advice on your specific needs and situation. Helloclue.com support.helloclue.com Terms of Service: www.helloclue.com/terms Privacy Policy: www.helloclue.com/privacy

About

Eveline Ovulation Cycle Track

This app helps couples trying to conceive by accurately identifying fertile days. It uses your smartphone's camera to read ovulation test strips and provides data, predictions, and timely notifications to optimize your fertility planning.

Highlights
  • Reads ovulation test strips with 99% accuracy using smartphone camera
  • Records and displays test results
  • Predicts 7 ovulation days
  • Provides push notifications for testing and peak days
  • Analyzes test results automatically with status icons
  • Saves data for future tracking
Read full description

Conceiving a child can be a real struggle for some couples. As we all know, there are only 5 fertile days in a month and figuring out those days accurately can be complicated. Eveline utilizes camera (front) of your smartphone to read the results from test strips with 99% accuracy. The mobile app shows and records test results on for maximum convenience. In addition, the Eveline Smart Fertility System provides you with comprehensive data and an innovative push notification system, so that you know when to take the test, and when the peak days are. Eveline App provides 7 predicted ovulation days for you to better make the fertility plan. Technology And Innovation At Your Side The Eveline Smart Fertility System Is Utilizing The Latest Advancements In Technology To Make Your Life Easier. THE MAGIC READER Utilizing the front camera of your phone, our algorithm analyses the test results automatically, the status icons make it easy to understand. THE SMART APP Our app does the miracle work. It calculates the next peak, saves data for future tracking, reminds you when the peak days are via push notifications.

Screenshots

Clue Period & Cycle Tracker4 screens
Eveline Ovulation Cycle Track3 screens

Verdict

The call

The clearest difference is in-app purchases: Eveline Ovulation Cycle Track at none against Clue Period & Cycle Tracker's 14. Eveline Ovulation Cycle Track also leads on review sentiment (76% vs 42%) and iOS requirement (9.0 vs 18.0). Clue Period & Cycle Tracker's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On price, rating and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Clue Period & Cycle Tracker sells 11 in-app purchases, starting at $9.99 per month. Eveline Ovulation Cycle Track asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Clue Period & Cycle Tracker against 4.9 for Eveline Ovulation Cycle Track. That said, the two scores are not equally well evidenced: Clue Period & Cycle Tracker has 404K ratings behind it against 181, so its average is the more settled of the two. Written reviews are what separate them: 42% of Clue Period & Cycle Tracker's written reviews are positive against 76% of Eveline Ovulation Cycle Track's.

UpkeepUpdate frequency

Clue Period & Cycle Tracker ships an update weekly, Eveline Ovulation Cycle Track every 2 months. The most recent releases landed on September 24, 2026 and August 28, 2026 respectively.

Scorecard8 real differences · 3 level
Clue Period & Cycle Tracker versus Eveline Ovulation Cycle Track: the parameters behind the verdict, then further details
ParameterClue Period & Cycle TrackerEveline Ovulation Cycle Track
PriceFreeFree
Rating4.8 (404K ratings)4.9 (181 ratings) — better
Positive reviews42.0% of reviews76.4% of reviews — better
Number of ratings404K — better181
Update frequencyWeekly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
Best chart rank#23 — better
DevicesiPhoneiPhone, iPod — better
Requires iOS18.09.0 — better
Further details — not scored
Size321 MB76 MB
Age rating12+12+
DeveloperBioWink GmbHiXensor Co. Ltd.

Customer experience

Clue Period & Cycle Tracker

All ratings404,195 ratings
Positive94.7%
Neutral2.7%
Negative2.7%
Written reviews1,904 reviews
Positive42.0%
Neutral14.0%
Negative44.0%

Eveline Ovulation Cycle Track

All ratings181 ratings
Positive97.2%
Neutral1.1%
Negative1.7%
Written reviews55 reviews
Positive76.4%
Neutral3.6%
Negative20.0%

Bugs and requests

Clue Period & Cycle Tracker

Reported bugs

5 issues
  • Cycle data being lost or inaccessible
  • Notifications and reminders not working
  • Sync issues between app and account data
  • Compatibility problems with older devices
  • Crashes and freezes when using the app

Requested features

7 requests
  • Add notes/journal functionality
  • Improve symptom tracking and analysis
  • Provide more options for irregular cycles
  • Integrate with other health/fitness apps
  • Allow customization of tracked categories
Show 2 more
  • Implement offline mode for data entry
  • Add support for pregnancy and postpartum

Eveline Ovulation Cycle Track

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Clue Period & Cycle Tracker

Subscriptions11
  • 1 Month$9.991 Month
  • Clue Period Tracker - 1 Month2 variants$9.991 Month
  • Clue Plus by BioWink GmbH$9.991 Month
Show 8 more
  • Clue Plus by BioWink GmbH7 Days trial$29.991 Year
  • Clue Period Tracker - 1 year1 Year trial$32.991 Year
  • Clue Period Tracker - 1 year1 Year trial2 variants$39.991 Year
  • 12 Months$39.991 Year
  • Clue Period Tracker - 12 Month$39.991 Year
  • Clue Period Tracker - 1 year7 Days trial$39.991 Year
  • Clue Plus by BioWink GmbH7 Days trial$39.991 Year
  • Clue Period Tracker - 1 year7 Days trial$49.991 Year
None

Eveline Ovulation Cycle Track

No in-app purchases

Questions

Is Clue Period & Cycle Tracker free?
Clue Period & Cycle Tracker is free to download, with in-app purchases available.
Is Eveline Ovulation Cycle Track free?
Eveline Ovulation Cycle Track is free to download, with no in-app purchases.
Which has better reviews, Clue Period & Cycle Tracker or Eveline Ovulation Cycle Track?
Eveline Ovulation Cycle Track is rated higher. Clue Period & Cycle Tracker averages 4.8 out of 5 from 404K ratings, while Eveline Ovulation Cycle Track averages 4.9 from 181 ratings.
Do Clue Period & Cycle Tracker or Eveline Ovulation Cycle Track have ads?
Eveline Ovulation Cycle Track shows ads; Clue Period & Cycle Tracker does not.
Which is updated more often, Clue Period & Cycle Tracker or Eveline Ovulation Cycle Track?
Clue Period & Cycle Tracker ships an update weekly, and Eveline Ovulation Cycle Track every 2 months. Most recently, Clue Period & Cycle Tracker was updated on September 24, 2026 and Eveline Ovulation Cycle Track on August 28, 2026.

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