# Thermometer Log vs Fever & Med Tracker

The clearest difference is update cadence: Fever & Med Tracker at fortnightly against Thermometer Log's every 2 months. Fever & Med Tracker also leads on rating (5.0 vs 4.8). Thermometer Log's advantage is ratings volume (6 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Thermometer Log sells 1 one-off in-app purchase and Fever & Med Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fever & Med Tracker holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

Thermometer Log ships an update every 2 months, Fever & Med Tracker fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Thermometer Log | Fever & Med Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/thermometer-log/id1546929547/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fever-and-med-tracker-tempdiary/id6747667970/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 73 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kei Suefuji](https://appshunter.io/developer/1388335881) | [秋月 钟](https://appshunter.io/developer/1821578144) |

## What reviewers say

### 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 |


### Fever & Med Tracker

[App page](https://appshunter.io/ios/app/fever-and-med-tracker-tempdiary/id6747667970)

Easily log body temperature and medication history with clear trend charts. Supports multiple profiles and offline use, with options to export data as images or PDF reports. A one-time purchase unlocks premium features like full PDF reports and ad removal.

**Highlights:** Log temperature and medications, View trend charts, Manage multiple profiles, Export image/PDF reports, Offline use, No signups or cloud sync

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is Thermometer Log free?

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

### Is Fever & Med Tracker free?

Fever & Med Tracker is free to download, with in-app purchases available.

### Which has better reviews, Thermometer Log or Fever & Med Tracker?

Fever & Med Tracker is rated higher. Thermometer Log averages 4.8 out of 5 from 6 ratings, while Fever & Med Tracker averages 5.0 from 2 ratings.

### Do Thermometer Log or Fever & Med Tracker have ads?

Both Thermometer Log and Fever & Med Tracker show ads.

### Which is updated more often, Thermometer Log or Fever & Med Tracker?

Thermometer Log ships an update every 2 months, and Fever & Med Tracker fortnightly. Most recently, Thermometer Log was updated on November 3, 2026 and Fever & Med Tracker on November 5, 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.*