Comparison

iThermonitor vs Kinsa

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

Head to head
About

iThermonitor

Continuously monitor your child's temperature with real-time data collection and analysis. Receive high temperature alerts and access expert fever management information. Track temperature trends and sync data with your health app for comprehensive care.

Highlights
  • 24/7 temperature monitoring
  • Real-time high temperature alerts
  • Temperature trend charting
  • Professional data analysis
  • Fever management information
  • Multi-child support
  • Health app integration
Features
Currently charting
Read full description

The most exciting update of iThermonitor app ever! Besides the brand-new user interface, the Temperature Analysis shows the highest temperature and the duration of fever for each episode. The Temperature Trend Chart combines temperature chart and fever related events, enabling the doctor to understand your child’s fever progression in a more informed way. For those who have more than one child, one smartphone can now connect with multiple iThermonitor sensors. 24/7 MONITORING - Connecting with the iThermonitor sensor, this app collects temperature data every 4 seconds and develops a temperature chart. HIGH TEMPERATURE ALERT – The app captures your child’s abnormal temperature in real time so that you can take necessary actions immediately. DATA ANALYSIS - Professional data analysis of body temperatures through collaboration with Boston Children’s Hospital, affiliated hospital of Harvard Medical School. FEVER TIPS- Free access to the Fever Management Information framework – Thermia, licensed from Boston Children’s Hospital, the #1 pediatric hospital in the US. ANYWHERE, ANYTIME – For parents and grandparents, wherever you are, you can always monitor your children’s temperature. iThermonitor has integrated with the Health App and you can sync body temperature data to the Health app (requires iOS8). Purchase on Amazon: http://t.cn/RwBpOPy Website: http://en.raiing.com/ Feedback: support@raiing.com Facebook: https://www.facebook.com/pages/iThermonitor/282296251955418 Twitter: https://twitter.com/RaiingMed

About

Kinsa

Track family health, symptoms, and temperatures to receive personalized care guidance. This app helps you remember crucial details for recovery and doctor visits, integrating with HealthKit for seamless data sharing.

Highlights
  • Age-specific fever and symptom guidance
  • Temperature, symptom, and medication tracking
  • Family member health profiles
  • Caregiver and doctor sharing
  • HealthKit and Health app integration
  • Recovery tips and comfort advice
Read full description

Let Kinsa guide you from the first sign of sickness through recovery and beyond! As seen in Apple’s “Parenthood” commercial, Parents Magazine, USA Today, Good Morning America, The New York Times, CBS This Morning, and more! KNOW WHAT TO DO NEXT Our care recommendations give you peace of mind with age-specific fever and symptom guidance - so you can know when it’s important to take extra precaution or see a doctor. REMEMBERS FOR YOU Easily track temperatures, symptoms and medication for everyone in your family! Remember details such as when symptoms began, how high the fever got, or when to give another dose of medication and share it with another caregiver or your doctor. Temperature data integrates seamlessly with HealthKit and the Health app. WHAT PARENTS ARE SAYING “The app tracks and organizes our family’s temps and symptoms and keeps the history. This is a wonderful app for a busy and sleep deprived mom!” “Hands down my favorite feature is that the app gives you suggestions on how to keep your little one comfortable and gives practical advice for a speedy recovery!” “The Kinsa app keeps all my data in one place and makes doctors appointments a breeze…” “We are a family of 6! Kinsa helps us keep track of everyone’s medical situation!” “This has to be one of the best products on the market for families, especially families with little ones!” The free Kinsa app works best with Kinsa's award-winning, pediatrician-recommended QuickCare, QuickScan, and Smart Ear thermometers, available for purchase online and in retail stores across the U.S. If you have an older Smart Stick thermometer that plugs into the headphone jack of your phone, please use the Kinsa Smart Stick app instead. We hope your family doesn't get sick, but if they do, we'll be there to help your family feel better faster! All information, images, and other content shared through Kinsa’s mobile or web applications is for informational purposes only and is not intended to be a substitute for professional medical advice, diagnosis or treatment from an appropriately qualified and licensed physician or other healthcare provider. Always seek the advice of a qualified healthcare provider with any questions you may have regarding your health, including any symptoms that are severe or concerning. If you are having a medical emergency, call 911 or the number for the local emergency ambulance service. Never disregard professional medical advice or delay seeking medical treatment because of something you have read on or accessed through this application. Full medical disclaimer here: https://www.kinsahealth.co/research/medical-information-from-kinsa/

Screenshots

iThermonitor1 screens
Kinsa4 screens

Verdict

The call

The clearest difference is rating: Kinsa at 4.8 against iThermonitor's 2.7. Kinsa also leads on review sentiment (51% vs 15%) and ratings volume (45K vs 310). iThermonitor's advantage is monetization model (free vs free with in-app purchases) and chart position (#145 vs unranked). On price, update cadence, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Kinsa holds the better App Store score, 4.8 against 2.7. That said, the two scores are not equally well evidenced: Kinsa has 45K ratings behind it against 310, so its average is the more settled of the two. Written reviews point the same way: 15% of iThermonitor's written reviews are positive against 51% of Kinsa's.

UpkeepUpdate frequency

iThermonitor ships an update every 2 months, Kinsa monthly. The most recent releases landed on September 28, 2026 and October 2, 2026 respectively.

Scorecard7 real differences · 4 level
iThermonitor versus Kinsa: the parameters behind the verdict, then further details
ParameteriThermonitorKinsa
PriceFreeFree
Rating2.7 (310 ratings)4.8 (45K ratings) — better
Positive reviews15.2% of reviews51.3% of reviews — better
Number of ratings31045K — better
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
Best chart rank#145 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS10.0 — better18.5
Further details — not scored
Size53 MB53 MB
Age rating12+12+
DeveloperRaiing Medical CompanyTransform Health Inc.

Customer experience

iThermonitor

All ratings310 ratings
Positive39.0%
Neutral11.0%
Negative50.0%
Written reviews125 reviews
Positive15.2%
Neutral7.2%
Negative77.6%

Kinsa

All ratings45,302 ratings
Positive96.7%
Neutral1.4%
Negative1.8%
Written reviews158 reviews
Positive51.3%
Neutral6.3%
Negative42.4%

User reviews

iThermonitor

From 310 App Store ratings

What we love

  • ✅ Accurate temperature readings when working properly
  • 🛡️ Effective fever monitoring without disturbing sleep
  • 📱 Remote monitoring capability (when functioning)
  • 🔔 Customizable temperature alerts and notifications
  • ⏱️ Long-term reliability for some users (5+ years)

Room to improve

  • ❌ Requires external hardware device not clearly disclosed
  • 🔗 Broken purchase links and unavailable sensors
  • 📉 Product appears discontinued or abandoned
  • 🚫 Misleading app store description and marketing
  • 🔌 Requires proximity to device (5-10 feet range)

Kinsa

From 45K App Store ratings

What we love

  • 🚀 Fast and accurate temperature readings
  • 📊 Helpful health tracking and recommendations
  • 🤖 Useful app integration with thermometer
  • 🤒 Effective for monitoring sick family members

Room to improve

  • 🐛 Connectivity issues with app and thermometer
  • 🔍 Overly complex setup process
  • 🕰️ Slow app performance and frequent crashes
  • 🔒 Privacy concerns with data collection

Bugs and requests

iThermonitor

Reported bugs

13 issues
  • App crashes immediately after login
  • Cannot enter birthdate in profile setup
  • Remote mirroring functionality broken after updates
  • Device connection wheel spins indefinitely
  • Password reset feature non-functional
Show 8 more
  • Paste disabled in password field
  • Watch app only displays 'Log in on iPhone' message
  • Blank screens on app launch
  • Constant disconnection requiring manual reconnection
  • Profile data changes unexpectedly (birthday month resets)
  • Cannot pair with Apple Watch despite claims
  • Sign-up process fails for adult users
  • App loses all data after updates

Requested features

11 requests
  • Apple Watch native integration and complications
  • Cloud synchronization and multi-device mirroring
  • Expanded temperature range settings (below 95°F)
  • Selective alert controls (high/low temperature separately)
  • Data export in text/CSV format instead of images
Show 6 more
  • Larger, more readable fonts for iPad viewing
  • Device status indicator with color-coded LED
  • Ability to delete medicine reminder notifications
  • Extended Bluetooth range for remote monitoring
  • Adult-only profile option
  • Improved adhesive patches or alternative attachment methods

Kinsa

Reported bugs

4 issues
  • App fails to save temperature readings
  • Thermometer disconnects from app unexpectedly
  • Inconsistent temperature readings across devices
  • Login issues and data loss on new device setup

Requested features

4 requests
  • Ability to manually enter temperatures without app
  • Option to customize symptom and medication tracking
  • Improved data export and history retention
  • Integration with other health tracking platforms

In-app purchases

None

iThermonitor

No in-app purchases

None

Kinsa

No in-app purchases

Questions

Is iThermonitor free?
iThermonitor is free to download, with no in-app purchases.
Is Kinsa free?
Kinsa is free to download, with no in-app purchases.
Which has better reviews, iThermonitor or Kinsa?
Kinsa is rated higher. iThermonitor averages 2.7 out of 5 from 310 ratings, while Kinsa averages 4.8 from 45K ratings.
Do iThermonitor or Kinsa have ads?
Neither iThermonitor nor Kinsa shows ads.
Which is updated more often, iThermonitor or Kinsa?
iThermonitor ships an update every 2 months, and Kinsa monthly. Most recently, iThermonitor was updated on September 28, 2026 and Kinsa on October 2, 2026.

Other comparisons