# STEADYTEMP Smart Thermometer vs Thermometer Log

The clearest difference is review sentiment: STEADYTEMP Smart Thermometer at 100% against Thermometer Log's 50%. STEADYTEMP Smart Thermometer also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Thermometer Log sells 1 one-off in-app purchase. STEADYTEMP Smart Thermometer asks for nothing beyond the download.

STEADYTEMP Smart Thermometer ships an update every 3 months, Thermometer Log every 2 months. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | STEADYTEMP Smart Thermometer | Thermometer Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (6 ratings)](https://appshunter.io/ios/app/thermometer-log/id1546929547/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 79 MB | 6 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [SteadySense GmbH](https://appshunter.io/developer/1373747508) | [Kei Suefuji](https://appshunter.io/developer/1388335881) |

## What reviewers say

### STEADYTEMP Smart Thermometer

[App page](https://appshunter.io/ios/app/steadytemp-smart-thermometer/id1504048457)

Continuously track body temperature and log symptoms with a sensor patch. Data syncs wirelessly to your phone, displaying temperature curves and allowing you to share your health history with your doctor. Ideal for monitoring illness, post-surgery recovery, and family health.

**Highlights:** Continuous temperature measurement, Automatic data sync via NFC, Symptom and medication logging, Shareable health history, Verified measurement accuracy, Radiation-free transmission

**In-app purchases:** none


### Thermometer Log

[App page](https://appshunter.io/ios/app/thermometer-log/id1546929547)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PREMIUM | $4.99 | one-time |


## Frequently asked questions

### Is STEADYTEMP Smart Thermometer free?

STEADYTEMP Smart Thermometer is free to download, with no in-app purchases.

### Is Thermometer Log free?

Thermometer Log is free to download, with in-app purchases available.

### Do STEADYTEMP Smart Thermometer or Thermometer Log have ads?

Thermometer Log shows ads; STEADYTEMP Smart Thermometer does not.

### Which is updated more often, STEADYTEMP Smart Thermometer or Thermometer Log?

STEADYTEMP Smart Thermometer ships an update every 3 months, and Thermometer Log every 2 months. Most recently, STEADYTEMP Smart Thermometer was updated on September 20, 2026 and Thermometer Log on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*