Comparison

Thermometer vs Fever Tracker

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

Head to head
About

Thermometer

Estimate body temperature using your smartphone without a physical thermometer. Track heart rate, blood pressure, and sync with Apple Watch for real-time fever alerts. Log custom health data and generate shareable PDF reports.

Highlights
  • Temperature estimation without a thermometer
  • Apple Watch Series 8 sync for readings
  • High fever alerts
  • Blood pressure tracking and trend analysis
  • Custom health logs with notes
  • Apple Health sync
  • Shareable PDF reports
Features
Read full description

No thermometer, no problem. Calculate body temperature with your iPhone. Turn your smartphone into a versatile tool for tracking temperature, heart rate, and blood pressure—anytime, anywhere. Functionalities:- -Temperature Estimation: Use your smartphone to estimate body temperature without the need for a physical thermometer. -Apple Watch Sync: Connect seamlessly with Apple Watch Series 8 for automatic temperature readings and real-time fever alerts. -High Fever Alerts: Receive automatic alerts from your Apple Watch when a high fever is detected, keeping you informed in real-time. -Blood Pressure Tracking: Effortlessly log and track your blood pressure, complete with trend analysis for better insights and PDF sharing. -Custom Health Logs: Add personalized notes to track symptoms, treatments, or anything else alongside your health data. -Apple Health sync and PDF reports: Sync with Apple Health and generate easy-to-share temperature PDF reports to keep your family informed. Whether you’re managing a fever, keeping an eye on your cardiovascular health, or tracking your blood pressure, this app offers a simple and effective way to stay in control of your wellness. Ideal for personal use, families, and healthcare providers, our app ensures you stay informed about your vital signs and make confident health decisions. Important: This app is not intended to replace medical advice or treatment. Please consult with a healthcare professional for any medical issues. Terms of use: https://bodytemperatureche.wixsite.com/website-5/legal Privacy policy: https://bodytemperatureche.wixsite.com/website-5/legal Visit us: https://https://bodytemperatureche.wixsite.com/website-5

About

Fever Tracker

This app allows users to accurately log and monitor body temperature readings for individuals or multiple family members. It provides visual trends, automatic fever detection, and health insights. An optional Pro version offers cloud sync, data export, and an ad-free experience.

Highlights
  • Advanced temperature tracking
  • Visual temperature trends
  • Automatic fever detection
  • Professional health insights
  • Apple Watch companion app
  • Cloud sync and backup (Pro)
  • PDF and CSV data export (Pro)
Features
Read full description

Fever Tracker is a simple, private temperature diary. Take a reading with your own thermometer, log it in seconds, and see at a glance whether it is normal, a low-grade temperature, a fever or a high fever. Track medicines and notes alongside every reading, for each person in your family, set reminders, and share a clear report with your doctor. LOG READINGS IN SECONDS • Enter temperatures in °F or °C, switch units at any time • Add medication and notes, such as symptoms, to each reading • Optionally record blood pressure (systolic/diastolic) with a reading • Text Size option and support for larger text UNDERSTAND THE TREND • Color-coded categories: low, normal, elevated, moderate fever and high fever • Charts and statistics by day, week and month • Calendar view to see every reading in context • Health insights that highlight highs, lows and changes REMINDERS • Medication reminders so you know when the next dose is due • Measurement reminders to check temperature on schedule REPORTS FOR YOUR DOCTOR • Create PDF and CSV reports of readings, symptoms and medicines • Share by email, messages or print before an appointment LEARN ABOUT FEVER • Short, illustrated guides: what a fever is, how to measure temperature correctly, first steps when someone has a fever • Fever in babies and children, and the warning signs that need a doctor or emergency care • Hydration and common medicines such as acetaminophen or ibuprofen • Every guide is sourced from trusted bodies including the NHS, CDC, WHO, AAP, NICE and Mayo Clinic IPHONE, IPAD, APPLE WATCH AND WIDGET • iCloud sync keeps your diary up to date on iPhone, iPad and Apple Watch • Apple Watch app: log a temperature and see history and insights from your wrist • Home-screen widget shows the latest temperature and its status • Apple Health integration reads and saves body temperature GET PRO • A one-time purchase, not a subscription • Family profiles: track fever separately for children, parents and anyone you care for • PDF and CSV export for your doctor • No ads IMPORTANT Fever Tracker does not measure temperature. Your iPhone, iPad or Apple Watch cannot take a body temperature reading for this app; use a proper thermometer and enter the result. The app is a diary and information tool and is not medical advice, diagnosis or treatment. Always follow the advice of a doctor, pharmacist or other qualified health professional, especially for babies, young children, pregnant people and anyone with a long-term condition. If you think someone is seriously ill, call 911 (or your local emergency number) right away.

Screenshots

Thermometer4 screens
Fever Tracker4 screens

Verdict

The call

The clearest difference is ads: Thermometer at none against Fever Tracker's shown. Thermometer also leads on update cadence (fortnightly vs every 6 months) and ratings volume (411 vs 1). Fever Tracker's advantage is rating (5.0 vs 4.6). On price, in-app purchases, monetization model 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 6 in-app purchases, starting at $5.99 per 7 days and Fever Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Fever Tracker holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Thermometer has 411 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Thermometer ships an update fortnightly, Fever Tracker every 6 months. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Thermometer versus Fever Tracker: the parameters behind the verdict, then further details
ParameterThermometerFever Tracker
PriceFreeFree
Rating4.6 (411 ratings)5.0 (1 ratings) — better
Positive reviews31.6% of reviews—
Number of ratings411 — better1
Update frequencyFortnightly — betterEvery 6 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.015.0
Further details — not scored
Size59 MB8 MB
Age rating17+4+
Developer199 Developments Private LimitedJakir Hossain

Customer experience

Thermometer

All ratings409 ratings
Positive92.4%
Neutral1.0%
Negative6.6%
Written reviews57 reviews
Positive31.6%
Neutral8.8%
Negative59.6%

Fever Tracker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Thermometer

Reported bugs

2 issues
  • Subscription issues and unexpected charges
  • App not functioning as advertised

Requested features

3 requests
  • Option to default to Fahrenheit
  • Ability to share breathing exercises
  • Improved compatibility with newer devices

Fever Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Thermometer

Subscriptions5
  • Week- Body Temperature Checker$5.997 Days
  • Year Promo- Body Thermometer$19.991 Year
  • Year- Body Temperature Checker$29.991 Year
Show 2 more
  • Yearly- Body Fever Checker3 Days trial$29.991 Year
  • Yearly - Thermometer + Blood Oxygen$29.991 Year
One-time1
  • Lifetime- Body Fever Checker$49.99
1 purchases

Fever Tracker

One-time1
  • Fever Log +$4.99

Questions

Is Thermometer free?
Thermometer is free to download, with in-app purchases available.
Is Fever Tracker free?
Fever Tracker is free to download, with in-app purchases available.
Which has better reviews, Thermometer or Fever Tracker?
Fever Tracker is rated higher. Thermometer averages 4.6 out of 5 from 411 ratings, while Fever Tracker averages 5.0 from 1 ratings.
Do Thermometer or Fever Tracker have ads?
Fever Tracker shows ads; Thermometer does not.
Which is updated more often, Thermometer or Fever Tracker?
Thermometer ships an update fortnightly, and Fever Tracker every 6 months. Most recently, Thermometer was updated on November 8, 2026 and Fever Tracker on October 30, 2026.

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