Comparison

Thermometer Log vs Thermometer

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

Head to head
About

Thermometer Log

Easily record and track your body temperature with this intuitive app. View historical data, analyze trends with graphs, and export your records. Supports both Celsius and Fahrenheit units.

Highlights
  • Easy temperature recording
  • Celsius and Fahrenheit support
  • Weekly, monthly, and 3-month graphs
  • Average temperature display
  • Data correction and addition
  • CSV export
Features
Read full description

This app is an app that allows you to easily record your body temperature. You can record many times a day! In addition, two units of body temperature can be used: Celsius (℃) and Fahrenheit (℉). Just move the scale on the home screen left and right to set the body temperature, and tap the save button to easily record the body temperature and save time! Since it can be recorded many times a day, it is ideal for recording body temperature in the morning and at night. On the "Analysis" screen, a graph of weekly, monthly, and 3-month body temperature is displayed. In addition, the average body temperature for that period is displayed. You can check the data by tapping the graph. On the "History" screen, the record of the body temperature of the year and month selected in the upper right of the screen is displayed. You can correct the body temperature data by double tapping the data. If you forget to record the body temperature data, you can add it by tapping the "Add" button on the upper left of the screen. When you tap the "Add" button, the input screen will be displayed. Select and add the date, time, and body temperature. By tapping the "Export CSV file" button, you can convert the history data to a CSV file and attach it to an email for export. On the "Settings" screen, you can set the unit of body temperature. You can also set the day of the week at the beginning of the week in the weekly graph. You can choose to start on Monday or Sunday. In the free version, you can check the body temperature record for up to one week. If you have an unlimited recording period and want to check monthly or 3 month data, please consider purchasing the premium version in the app. ---------------------- Terms of Service and Privacy Policy: https://akikibai-labolatory.jimdofree.com/privacy-policy-log-apps/

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

Screenshots

Thermometer Log4 screens
Thermometer4 screens

Verdict

The call

The clearest difference is ads: Thermometer at none against Thermometer Log's shown. Thermometer also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (407 vs 6). Thermometer Log's advantage is review sentiment (50% vs 32%) and rating (4.8 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 Log sells 1 one-off in-app purchase and Thermometer sells 6 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Thermometer Log holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Thermometer has 407 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 50% of Thermometer Log's written reviews are positive against 32% of Thermometer's.

UpkeepUpdate frequency

Thermometer Log ships an update every 2 months, Thermometer every 2 weeks. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

Scorecard5 real differences · 5 level
Thermometer Log versus Thermometer: the parameters behind the verdict, then further details
ParameterThermometer LogThermometer
PriceFreeFree
Rating4.8 (6 ratings) — better4.6 (407 ratings)
Positive reviews50.0% of reviews — better32.1% of reviews
Number of ratings6407 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS15.615.0 — better
Further details — not scored
Size6 MB59 MB
Age rating4+17+
DeveloperKei Suefuji199 Developments Private Limited

Customer experience

Thermometer Log

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive50.0%
Neutral10.0%
Negative40.0%

Thermometer

All ratings407 ratings
Positive92.6%
Neutral0.5%
Negative6.9%
Written reviews56 reviews
Positive32.1%
Neutral7.1%
Negative60.7%

Bugs and requests

Thermometer Log

Not enough reviews yet to summarise bugs or 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

In-app purchases

1 purchases

Thermometer Log

One-time1
  • PREMIUM$4.99
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

Questions

Is Thermometer Log free?
Thermometer Log is free to download, with in-app purchases available.
Is Thermometer free?
Thermometer is free to download, with in-app purchases available.
Which has better reviews, Thermometer Log or Thermometer?
Thermometer Log is rated higher. Thermometer Log averages 4.8 out of 5 from 6 ratings, while Thermometer averages 4.6 from 407 ratings.
Do Thermometer Log or Thermometer have ads?
Thermometer Log shows ads; Thermometer does not.
Which is updated more often, Thermometer Log or Thermometer?
Thermometer Log ships an update every 2 months, and Thermometer every 2 weeks. Most recently, Thermometer Log was updated on September 21, 2026 and Thermometer on September 23, 2026.

Other comparisons