FeverCheck vs Thermometer Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FeverCheck
Record body temperature and illness symptoms with a timestamp. Receive alerts for temperatures above 37.5°C. Log personal contacts and export data for employer or health authority verification.
- Body temperature recording
- Symptom input
- High temperature alerts
- Personal contact logging
- Data export function
- Timestamped entries
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Diary recording of body temperature, measured with an external fever meter, with input field for symptoms of illness. Warning when body temperature exceeds 37.5°C. Diary recording of personal contacts. The data are logged with the current date and time stamp and are only stored on the smartphone. The app serves as proof of self-control towards employers and health authorities. If necessary, the data can be exported using a separate function.
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.
- Easy temperature recording
- Celsius and Fahrenheit support
- Weekly, monthly, and 3-month graphs
- Average temperature display
- Data correction and addition
- CSV export
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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/
Screenshots
Verdict
The clearest difference is rating: Thermometer Log at 4.8 against FeverCheck's 3.3. FeverCheck's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment 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
Both are free to download. Thermometer Log sells 1 one-off in-app purchase. FeverCheck asks for nothing beyond the download.
Thermometer Log holds the better App Store score, 4.8 against 3.3. Both are backed by a comparable volume of ratings — 28 and 6 respectively. Written reviews complicate that: 54% of FeverCheck's written reviews are positive against 50% of Thermometer Log's, so the app with the better star average is not the one people write more warmly about.
FeverCheck ships an update weekly, Thermometer Log every 2 months. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.
| Parameter | FeverCheck | Thermometer Log |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (28 ratings) | 4.8 (6 ratings) — better |
| Positive reviews | 54.2% of reviews — better | 50.0% of reviews |
| Number of ratings | 28 — better | 6 |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 16 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | RR Solutions KG Des Rudolf Rienzner &Co. | Kei Suefuji |
Customer experience
FeverCheck
Thermometer Log
In-app purchases
FeverCheck
No in-app purchases
Thermometer Log
- PREMIUM$4.99
