Comparison

iFertracker vs Wrist Temperature Tracker

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

Head to head
About

iFertracker

This app helps users track their menstrual cycles and identify their fertile window for conception. It uses basal body temperature data to predict ovulation and suggest optimal times for intercourse. Users can visualize their cycle data and share BBT charts for medical consultation.

Highlights
  • Ovulation prediction
  • Fertile window identification
  • Menstrual cycle tracking
  • Basal body temperature charting
  • Health App integration
  • Data visualization
Features
Read full description

iFertracker, a smart basal-body-temperature (BBT) thermometer developed by Raiing Medical Company, is to track the best time to try and conceive. Connecting with the iFertracker App, iFertracker can easily tell you the phases of your menstrual cycle, fertile window, and help you arrange intercourse accordingly. Key functions are: [Find the right time] - Wear the iFertracker overnight, you will get precise basal body temperature for ovulation prediction and the best time for intercourse. [Understand your menstrual cycles] - Menstrual cycles are illustrated in a visual and intuitive way based on consecutive and precise data, getting you ready for the approaching period. [BBT chart] - BBT chart is available for further medical consulting and professional diagnosis. iFertracker has integrated with the Health App and you can sync your basal body temperature and menstruation data to the Health app (requires iOS8). Raiing Medical is a data driven, healthcare service company, dedicated to reproductive health.

About

Wrist Temperature Tracker

Visualize your overnight wrist temperature trends from your Apple Watch. Track historical data, compare cycles, and view insights with customizable widgets. Requires a compatible Apple Watch and Sleep Tracking to be active.

Highlights
  • Nightly reading history (7, 30, 90 days, 1 year)
  • Monthly calendar with relative color coding
  • Cycle comparison with period start data
  • Widgets and complications for quick access
  • Notifications for new readings
  • Health data diagnostics
Features
Read full description

How has your wrist temperature changed over the past nights? Wrist Temperature Tracker shows your Apple Watch readings as history, comparisons and widgets. For people with a compatible Watch who want a clearer view of their overnight data in Apple Health. The app does not take measurements and is not an on-demand thermometer. Try the iPhone app for six days after installation. Continued access then requires a monthly subscription, annual subscription, or one-time purchase. You can restore an existing purchase. Before you start - You need an Apple Watch that supports wrist temperature sensing. - Wear it while sleeping. Track Sleep with Apple Watch and Sleep Focus need to be active for at least 4 hours per night. - After setup or pairing, establishing a baseline usually takes about 5 nights. - Allow the app to read wrist temperature from Health. If Health has no samples, the app cannot show any values. Features - Measured night readings over 7, 30 or 90 days, or one year. Missing nights stay visible. - A monthly calendar with colours relative to that month's median, not a medical temperature threshold. - Compare cycles using recorded period starts from Apple Health or your own local entries. The app does not write cycle data to Health. - Widgets and complications for quick access to recent data - Get notified when a new reading arrives: all readings, or only values below or above your absolute temperature thresholds. No on-demand measurement or guaranteed daily notification. - A diagnostics area for Health data, notifications, and purchases Temperature patterns do not confirm ovulation. Not for contraception or diagnosis. Terms and conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iFertracker3 screens
Wrist Temperature Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: iFertracker at none against Wrist Temperature Tracker's 3. iFertracker also leads on review sentiment (40% vs 28%) and iOS requirement (10.0 vs 18.0). Wrist Temperature Tracker's advantage is update cadence (every 9 days vs every 2 months) and rating (3.4 vs 3.1). On price, ratings volume, ads 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. Wrist Temperature Tracker sells 3 in-app purchases, starting at $1.99 per month. iFertracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Wrist Temperature Tracker holds the better App Store score, 3.4 against 3.1. Both are backed by a comparable volume of ratings — 55 and 128 respectively. Written reviews complicate that: 40% of iFertracker's written reviews are positive against 28% of Wrist Temperature Tracker's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

iFertracker ships an update every 2 months, Wrist Temperature Tracker every 9 days. Both last shipped on November 13, 2026.

Scorecard6 real differences · 4 level
iFertracker versus Wrist Temperature Tracker: the parameters behind the verdict, then further details
ParameteriFertrackerWrist Temperature Tracker
PriceFreeFree
Rating3.1 (55 ratings)3.4 (128 ratings) — better
Positive reviews40.0% of reviews — better27.8% of reviews
Number of ratings55128 — better
Update frequencyEvery 2 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS10.0 — better18.0
Further details — not scored
Size47 MB5 MB
Age rating17+4+
DeveloperRaiing Medical CompanyBernhard Hering

Customer experience

iFertracker

All ratings55 ratings
Positive47.3%
Neutral7.3%
Negative45.5%
Written reviews45 reviews
Positive40.0%
Neutral8.9%
Negative51.1%

Wrist Temperature Tracker

All ratings128 ratings
Positive57.8%
Neutral3.9%
Negative38.3%
Written reviews108 reviews
Positive27.8%
Neutral9.3%
Negative63.0%

In-app purchases

None

iFertracker

No in-app purchases

3 purchases

Wrist Temperature Tracker

Subscriptions2
  • Monthly Subscription$1.991 Month
  • Yearly Subscription$11.991 Year
One-time1
  • Unlock Wrist Temperature$79.99

Questions

Is iFertracker free?
iFertracker is free to download, with no in-app purchases.
Is Wrist Temperature Tracker free?
Wrist Temperature Tracker is free to download, with in-app purchases available.
Which has better reviews, iFertracker or Wrist Temperature Tracker?
Wrist Temperature Tracker is rated higher. iFertracker averages 3.1 out of 5 from 55 ratings, while Wrist Temperature Tracker averages 3.4 from 128 ratings.
Do iFertracker or Wrist Temperature Tracker have ads?
Neither iFertracker nor Wrist Temperature Tracker shows ads.
Which is updated more often, iFertracker or Wrist Temperature Tracker?
iFertracker ships an update every 2 months, and Wrist Temperature Tracker every 9 days. Most recently, iFertracker was updated on November 13, 2026 and Wrist Temperature Tracker on November 13, 2026.

Other comparisons