Comparison

Masimo Radius T° vs Thermometer

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

Head to head
About

Masimo Radius T°

This app works with a wearable thermometer to provide continuous, round-the-clock temperature monitoring. It sends readings and high-temperature alerts directly to your phone, allowing you to track fever trends easily without disturbing sleep.

Highlights
  • Continuous 24/7 temperature measurement
  • High temperature notifications
  • Temperature trending visualization
  • Snapshot view of temperature range
  • Wearable and disposable sensor compatibility
Read full description

The Masimo Radius T° app does not provide medical or healthcare diagnoses, advice, or services, and is not a substitute for medical care. Now you can easily keep an eye on a fever, so you don’t miss something important. Radius T°™ is a wearable and disposable thermometer (sold separately) that sends round-the-clock temperature measurements and notifications directly to your phone. Time to upgrade your thermometer and switch to the advantages of continuous temperature tracking: KEEP AN EYE ON A FEVER - CONTINUOUSLY AND HASSLE-FREE *** Requires purchase of Radius T° Continuous Thermometer Sensors, sold separately *** CONTINUOUS MEASUREMENTS Hassle-free temperature measurements, 24/7 for up to 8 days. Keep a constant eye on their fever, without even waking them. HIGH TEMPERATURE NOTIFICATIONS Automatically sends readings to your mobile phone and notifies you if temperature is high. TEMPERATURE TRENDING Continually see if temperature is trending up or down, so you can see how the fever is progressing. With the Masimo Radius T° mobile app, it's easy to keep an eye on a fever: - SNAPSHOT - See if temperature is in or out of range at a quick glance. - TRENDS - Easily see which way temperature is trending and how long it's been high, so you can keep an eye on progress. - NOTIFICATIONS - Automatically notifies you if the temperature is high, so you know when additional action may be needed.

About

Thermometer

Monitor key health indicators like body temperature, heart rate, blood pressure, and breathing frequency. Easily track family health records and export data for medical appointments. Measure pulse using your smartphone camera.

Highlights
  • Body temperature tracking
  • Heart rate measurement via camera
  • Blood pressure logging
  • Breathing frequency monitoring
  • Multi-profile family support
  • Medical data export (PDF)
Features
Read full description

Thermometer - Body Temperature Your All-in-One Personal Health Tracker Take full control of your health with the redesigned Thermometer - Body Temperature app — a powerful and intuitive solution for monitoring essential health data right from your smartphone. Whether you’re managing a chronic condition, tracking a fever, or simply staying informed about your health, this app provides the tools you need in one convenient place. Comprehensive Health Monitoring Track and record vital health indicators in one unified platform: • Body Temperature to monitor for fever and overall wellness • Heart Rate (Pulse) measured directly through your smartphone camera • Blood Pressure entry and tracking to help manage cardiovascular health • Breathing Frequency to observe respiratory patterns and detect changes This comprehensive tracking system enables users to build a clear picture of their daily and long-term health trends. Pulse Measurement Using Camera Measure your heart rate easily and accurately using only your smartphone’s camera. Simply place your finger over the lens and flashlight to receive a reading within seconds — no external devices required. Ideal for regular checks at home or on the go. Multi-Profile Family Support Create and manage separate profiles for each member of your family. From children to older adults, the app helps keep each person’s health records organized and accessible. Switch between profiles effortlessly while keeping all data private and secure. Export Medical Data Export your health records as a PDF document for easy sharing with doctors, caregivers, or personal use. This feature makes it simple to bring a full record to medical appointments or keep personal documentation for reference. Simple, Reliable, and Always With You With a clean and easy-to-use interface, the app ensures that you can access and log your health data quickly and accurately — without the need for additional hardware or subscriptions. Stay proactive about your well-being with a trusted tool built to support your daily health routine. Thermometer - Body Temperature is more than just a thermometer — it’s a complete personal health tracker designed to help you stay informed, prepared, and in control. Terms - https://gt.lv/terms.html#about Privacy Policy - https://gt.lv/privacy.html#about Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Masimo Radius T°4 screens
Thermometer4 screens

Verdict

The call

The clearest difference is review sentiment: Masimo Radius T° at 91% against Thermometer's 55%. Masimo Radius T° also leads on in-app purchases (none vs 5) and rating (4.8 vs 4.4). Thermometer's advantage is update cadence (monthly vs every 23 months). 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. Thermometer sells 5 in-app purchases, starting at $6.99 per 7 days. Masimo Radius T° asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Masimo Radius T° holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 19 and 24 respectively. Written reviews point the same way: 91% of Masimo Radius T°'s written reviews are positive against 55% of Thermometer's.

UpkeepUpdate frequency

Masimo Radius T° ships an update every 23 months, Thermometer monthly. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

Scorecard6 real differences · 4 level
Masimo Radius T° versus Thermometer: the parameters behind the verdict, then further details
ParameterMasimo Radius T°Thermometer
PriceFreeFree
Rating4.8 (19 ratings) — better4.4 (24 ratings)
Positive reviews90.9% of reviews — better54.5% of reviews
Number of ratings1924 — better
Update frequencyEvery 23 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size102 MB34 MB
Age rating4+4+
DeveloperMasimo CorporationGT TRADE SIA

Customer experience

Masimo Radius T°

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews11 reviews
Positive90.9%
Neutral0.0%
Negative9.1%

Thermometer

All ratings24 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews11 reviews
Positive54.5%
Neutral0.0%
Negative45.5%

In-app purchases

None

Masimo Radius T°

No in-app purchases

5 purchases

Thermometer

Subscriptions4
  • Thermometer Full Access3 Days trial$6.997 Days
  • Get Pro Access3 Days trial$7.997 Days
  • Get Pro Access3 Days trial$9.991 Month
Show 1 more
  • Get Pro Access$39.991 Year
One-time1
  • Lifetime Access$24.99

Questions

Is Masimo Radius T° free?
Masimo Radius T° is free to download, with no in-app purchases.
Is Thermometer free?
Thermometer is free to download, with in-app purchases available.
Which has better reviews, Masimo Radius T° or Thermometer?
Masimo Radius T° is rated higher. Masimo Radius T° averages 4.8 out of 5 from 19 ratings, while Thermometer averages 4.4 from 24 ratings.
Do Masimo Radius T° or Thermometer have ads?
Neither Masimo Radius T° nor Thermometer shows ads.
Which is updated more often, Masimo Radius T° or Thermometer?
Masimo Radius T° ships an update every 23 months, and Thermometer monthly. Most recently, Masimo Radius T° was updated on November 3, 2026 and Thermometer on November 12, 2026.

Other comparisons