# Thermo vs Wrist Temperature Tracker

The clearest difference is ads: Wrist Temperature Tracker at none against Thermo's shown. Wrist Temperature Tracker also leads on review sentiment (28% vs 5%) and update cadence (every 11 days vs monthly). Thermo's advantage is rating (3.6 vs 3.4) and iOS requirement (16.0 vs 18.0). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Thermo sells 8 in-app purchases, starting at $10.99 per month and Wrist Temperature Tracker sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Thermo holds the better App Store score, 3.6 against 3.4. Both are backed by a comparable volume of ratings — 98 and 127 respectively. Written reviews complicate that: 5% of Thermo's written reviews are positive against 28% of Wrist Temperature Tracker's, so the app with the better star average is not the one people write more warmly about.

Thermo ships an update monthly, Wrist Temperature Tracker every 11 days. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Thermo | Wrist Temperature Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (98 ratings)](https://appshunter.io/ios/app/thermo-temperature-check-in/id1046767441/reviews)** | [3.4 (127 ratings)](https://appshunter.io/ios/app/wrist-temperature-tracker/id6443753237/reviews) |
| Number of ratings | 98 | **127** |
| Positive reviews | 5.2% of reviews | **28.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 90 MB | 5 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Daily Discovers](https://appshunter.io/developer/1408603176) | [Bernhard Hering](https://appshunter.io/developer/327542085) |

## What reviewers say

### Thermo

[App page](https://appshunter.io/ios/app/thermo-temperature-check-in/id1046767441)

Easily track family health by logging temperature changes and other vital signs. Create individual profiles to monitor each person's well-being over time with helpful charts and graphs. Set personalized reminders for consistent tracking and utilize voice input for added convenience.

**Highlights:** Family health tracking, Individual profiles, Temperature logging, Health dynamic graphs, Personalized reminders, Voice input, Apple Watch sync

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thermo  - 1 Month no trial | $10.99 | per month |
| Thermo Premium | $12.99 | per month |
| Thermo Premium - 1 month | $12.99 | per month |
| Thermo - Digital Wellness | $18.99 | per 3 months |
| Thermo - Digital Wellness + | $19.99 | per month |
| Thermo Plus - 12 months | $27.99 | per year |
| 3 months subscription | $39.99 | per 3 months |
| 3 Month Subscription | $59.99 | per 3 months |


### Wrist Temperature Tracker

[App page](https://appshunter.io/ios/app/wrist-temperature-tracker/id6443753237)

Visualize your Apple Watch's overnight wrist temperature readings as historical data and convenient widgets. Understand your temperature trends over time, with options for monthly, yearly, and comparative views. Requires a compatible Apple Watch and proper sleep tracking setup.

**Highlights:** Nightly reading history (7, 30, 90 days, 1 year), Monthly calendar with relative color coding, Cycle comparison with period start data, Widgets and complications for quick access, Customizable reading notifications, Health data diagnostics

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $11.99 | per year |
| Unlock Wrist Temperature | $79.99 | one-time |


## Frequently asked questions

### Is Thermo free?

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

### Is Wrist Temperature Tracker free?

Wrist Temperature Tracker is free to download, with in-app purchases available.

### Which has better reviews, Thermo or Wrist Temperature Tracker?

Thermo is rated higher. Thermo averages 3.6 out of 5 from 98 ratings, while Wrist Temperature Tracker averages 3.4 from 127 ratings.

### Do Thermo or Wrist Temperature Tracker have ads?

Thermo shows ads; Wrist Temperature Tracker does not.

### Which is updated more often, Thermo or Wrist Temperature Tracker?

Thermo ships an update monthly, and Wrist Temperature Tracker every 11 days. Most recently, Thermo was updated on November 2, 2026 and Wrist Temperature Tracker on November 4, 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.*