Comparison

Tempdrop vs Cyclisity TCOYF Cycle Tracker

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

Head to head
About

Tempdrop

This app works with a specialized thermometer to track subtle overnight temperature changes. It helps identify hormonal fluctuations throughout the menstrual cycle, pinpoint ovulation, and predict cycle phases. The data supports fertility awareness and cycle tracking.

Highlights
  • Basal body temperature tracking
  • Ovulation pinpointing
  • Menstrual cycle prediction
  • Hormonal fluctuation correlation
  • Fertility awareness support
Features
Read full description

The Tempdrop app is designed to complement the Tempdrop device - a personalized user-specific thermometer that captures minute temperature variations throughout the night to pinpoint the basal body temperature. Detected variations in temperature correlate with hormonal fluctuations throughout the menstrual cycle. When used with the Tempdrop device, this app can help users to pinpoint ovulation and effectively track and predict the varying phases of the cycle. Disclaimer: The Tempdrop sensor and app are intended as complementary instruments to enhance your ability to monitor your fertility and share health details. The app and its wearable sensor, in themselves, are not, nor are they intended to be, a fertility monitor, a substitute for contraception, or a birth control method. We recognize the need of some to use the data and information provided to support ongoing health and menstrual cycle tracking, however, it is important to note that this should NOT be used as a substitute for an in-presence qualified professional, medical analysis, advice, guidance, or treatment. We strongly advise seeking a qualified Fertility Awareness instructor or other self-teaching resources to learn a symptothermal method and support your fertility journey. The provided interpretations and prediction guidelines are not suitable for use with irregular cycles. Optimal performance is dependent on correct and consistent use. Individual usage, wearing, input, and circumstances can affect the data. The user is fully responsible for the individual data inputs. The Tempdrop Sensor is approved for use in the USA, and is registered in the FDA database under registration number 3016099071. The device is classified as "Device, Fertility Diagnostic, Proceptive”. A link to the terms of use - https://www.tempdrop.com/pages/tos A link to the privacy policy - https://www.tempdrop.com/pages/privacy-policy

About

Cyclisity TCOYF Cycle Tracker

This app helps you track your menstrual cycles and fertility using the science-based symptothermal method. It guides you through charting your temperature, cervical fluid, and cervical position, applying established fertility awareness guidelines. Access educational resources and community support to confidently understand your body's natural rhythms.

Highlights
  • Symptothermal cycle tracking
  • Ovulation and period charting
  • Fertility Awareness Method (FAM) guidelines
  • In-app educational references
  • Community forums
  • Privacy-focused data ownership
Read full description

Official cycle & ovulation tracking app of Taking Charge of Your Fertility (TCOYF), co-founded by Toni Weschler, MPH. Carefully crafted by Toni Weschler, MPH - renowned Fertility Awareness Method (FAM) expert and author of the best-selling book Taking Charge of Your Fertility - alongside a passionate team of product designers, developers and physicians, the goal of Cyclisity is simple: be the world's best symptothermal method tracking app. Integrating seamlessly with the 2015 edition of Taking Charge of Your Fertility, Cyclisity follows TCOYF's science-based guidelines to help you confidently track your ovulatory cycles and practice FAM. Because a strong knowledge-base is crucial to practicing FAM correctly, in-app references can guide you back to key educational concepts from the book, ensuring you have ample support on your fertility awareness journey. PAID FEATURES: * Two tracks to choose from (Ovulation and Period Tracking or Pregnancy Achievement) * Ovulation and period tracking chart and calendar * Auto-detection of peak days and coverlines even for tricky thermal shifts (Runs all TCOYF rules automatically, so you can check your work) * Book references to TCOYF at helpful points throughout the app * Community forums rooted in learning and support * More features like charting secondary fertility signs and thermometer integrations coming soon! NO PREDICTIONS. Every woman's ovulatory cycle is unique. That’s why we don’t use predictive algorithms to guess at your fertile window. Instead, we help you chart your waking temperature, cervical fluid, and cervical position, and seamlessly apply the four FAM rules each day as taught in Taking Charge of Your Fertility. No shortcuts. No rhythm method. Just science, your observations, and the tools to help you read them with confidence. YOUR PRIVACY IS OUR COMMITMENT. At Cyclisity, we guarantee you remain the exclusive owner of your data. Rest assured, we will never sell your data, and will never forward it to a third party unless instructed by you. This is partly why we've chosen to self-fund and bootstrap Cyclisity, so we can always advocate for our customers in everything we do. PAYMENT. Please note Cyclisity is not a free app and access to all features requires recurring monthly payments of $2.99 USD or annual payments of $19.99 USD. We charge a subscription in order to maintain Cyclisity while avoiding any need for advertising or selling user data. 1-MONTH FREE TRIAL. Try Cyclisity for free for one month and subsequently with recurring monthly payments of $2.99 USD or annual payments of $19.99 USD. PRIVACY POLICY & TERMS OF SERVICE. www.cyclisity.com/privacy-policy www.cyclisity.com/terms-of-service WEBSITE. www.cyclisity.com SUPPORT. Contact us anytime at support@cyclisity.com or via the account page inside the app. DISCLAIMER. YOU MUST INTERPRET YOUR OWN CYCLES. Although Cyclisity is designed to help make charting your cycles seamless, we are not FDA approved as a medical device and do not provide any medical advice. You must interpret your own data when determining fertile days or non-fertile days.

Screenshots

Tempdrop4 screens
Cyclisity TCOYF Cycle Tracker4 screens

Verdict

The call

The clearest difference is review sentiment: Cyclisity TCOYF Cycle Tracker at 93% against Tempdrop's 38%. Cyclisity TCOYF Cycle Tracker also leads on rating (4.8 vs 4.2) and update cadence (monthly vs every 2 months). Tempdrop's advantage is monetization model (free with in-app purchases vs subscription) and ratings volume (705 vs 101). On price, ads and in-app purchases 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. Tempdrop sells 6 in-app purchases, starting at $2.99 per month and Cyclisity TCOYF Cycle Tracker sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cyclisity TCOYF Cycle Tracker holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Tempdrop has 705 ratings behind it against 101, so its average is the more settled of the two. Written reviews point the same way: 38% of Tempdrop's written reviews are positive against 93% of Cyclisity TCOYF Cycle Tracker's.

UpkeepUpdate frequency

Tempdrop ships an update every 2 months, Cyclisity TCOYF Cycle Tracker monthly. The most recent releases landed on September 27, 2026 and September 21, 2026 respectively.

Scorecard7 real differences · 3 level
Tempdrop versus Cyclisity TCOYF Cycle Tracker: the parameters behind the verdict, then further details
ParameterTempdropCyclisity TCOYF Cycle Tracker
PriceFreeFree
Rating4.2 (705 ratings)4.8 (101 ratings) — better
Positive reviews38.2% of reviews93.5% of reviews — better
Number of ratings705 — better101
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18
Further details — not scored
Size104 MB52 MB
Age rating12+17+
DeveloperTempdrop IncTCOYF Applications LLC

Customer experience

Tempdrop

All ratings705 ratings
Positive80.7%
Neutral6.1%
Negative13.2%
Written reviews165 reviews
Positive38.2%
Neutral18.8%
Negative43.0%

Cyclisity TCOYF Cycle Tracker

All ratings93 ratings
Positive94.6%
Neutral1.1%
Negative4.3%
Written reviews46 reviews
Positive93.5%
Neutral4.3%
Negative2.2%

Bugs and requests

Tempdrop

Reported bugs

4 issues
  • App crashes and freezes
  • Issues with syncing device data
  • Inaccurate cycle predictions and phase tracking
  • Temperature data changes over time

Requested features

5 requests
  • Improved sleep tracking capabilities
  • More customizable symptom and data tracking
  • Ability to manually confirm ovulation
  • Integration with other fertility/health apps
  • Support for irregular cycles and postpartum/breastfeeding phases

Cyclisity TCOYF Cycle Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Tempdrop

Subscriptions6
  • Tempdrop Promo Premium monthly2 Months trial$2.991 Month
  • Tempdrop Premium monthly2 Months trial$6.001 Month
  • Tempdrop Promo Premium quarterly2 Months trial$7.993 Months
Show 3 more
  • Tempdrop Premium quarterly2 Months trial$15.003 Months
  • Tempdrop Promo Premium yearly2 Months trial$24.991 Year
  • Tempdrop Premium yearly*2 Months trial$48.001 Year
2 purchases

Cyclisity TCOYF Cycle Tracker

Subscriptions2
  • Monthly plan1 Month trial$2.991 Month
  • Yearly plan1 Month trial$19.991 Year

Questions

Is Tempdrop free?
Tempdrop is free to download, with in-app purchases available.
Is Cyclisity TCOYF Cycle Tracker free?
Cyclisity TCOYF Cycle Tracker is free to download, with in-app purchases available.
Which has better reviews, Tempdrop or Cyclisity TCOYF Cycle Tracker?
Cyclisity TCOYF Cycle Tracker is rated higher. Tempdrop averages 4.2 out of 5 from 705 ratings, while Cyclisity TCOYF Cycle Tracker averages 4.8 from 101 ratings.
Do Tempdrop or Cyclisity TCOYF Cycle Tracker have ads?
Neither Tempdrop nor Cyclisity TCOYF Cycle Tracker shows ads.
Which is updated more often, Tempdrop or Cyclisity TCOYF Cycle Tracker?
Tempdrop ships an update every 2 months, and Cyclisity TCOYF Cycle Tracker monthly. Most recently, Tempdrop was updated on September 27, 2026 and Cyclisity TCOYF Cycle Tracker on September 21, 2026.

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