# Thermometer++ App vs Mercure

The clearest difference is rating: Thermometer++ App at 4.7 against Mercure's 4.0. Thermometer++ App also leads on ratings volume (7.3K vs 5) and chart position (#100 vs unranked). Mercure's advantage is in-app purchases (none vs 3). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Thermometer++ App sells 3 in-app purchases, starting at $0.99 per month. Mercure asks for nothing beyond the download.

Thermometer++ App holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Thermometer++ App has 7.3K ratings behind it against 5, so its average is the more settled of the two.

Thermometer++ App ships an update every 5 weeks, Mercure monthly. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Thermometer++ App | Mercure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7.3K ratings)](https://appshunter.io/ios/app/thermometer-plus-plus-app/id704237014/reviews)** | [4.0 (5 ratings)](https://appshunter.io/ios/app/mercure-weather-forecast/id1530335533/reviews) |
| Number of ratings | **7.3K** | 5 |
| Positive reviews | 74.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | **#100** | — |
| Size | 22 MB | 6 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | +4 |
| Developer | [Viachaslau Tysianchuk](https://appshunter.io/developer/704237017) | [David Azancot](https://appshunter.io/developer/507868249) |

## What reviewers say

### Thermometer++ App

[App page](https://appshunter.io/ios/app/thermometer-plus-plus-app/id704237014)

**Currently charting:** #100 Top Free · Weather (US App Store)

Transform your device into a precise thermometer. Get real-time outdoor temperature, humidity, pressure, and wind data for your current location. Utilizes AI to combine data from multiple sources for accurate, up-to-the-minute weather information.

**Highlights:** Real-time temperature, humidity, pressure, and wind, Thermometer, barometer, and hygrometer functions, Current location or custom location selection, Celsius and Fahrenheit display, AI-powered weather predictions, Minimalistic data display

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version, Monthly | $0.99 | per month |
| Premium Version, Yearly | $2.99 | per year |
| Premium Version, Lifetime | $4.99 | one-time |

**What reviewers like**

- 🚀 Accurate temperature readings
- 👍 Simple and easy to use
- 🔍 Provides humidity information
- 🌍 Works well in different locations

**What reviewers complain about**

- 🐛 Inconsistent temperature readings
- 🗺️ Inaccurate location detection
- 🔌 Doesn't work without internet connection
- 💰 Paid version required to remove ads

**Reported bugs**

- Temperature reading stuck at a constant value
- App crashes when opening in certain locations

**Requested features**

- Add indoor temperature monitoring
- Provide weather forecast information
- Include a widget for quick temperature access


### Mercure

[App page](https://appshunter.io/ios/app/mercure-weather-forecast/id1530335533)

This app provides current weather information with a fun and colorful interface. It offers details like temperature, sunrise/sunset times, wind speed, and humidity for your current location or anywhere globally. Customize temperature units and enjoy animated displays.

**Highlights:** Animated temperature display, Current temperature worldwide, Sunrise and sunset times, Wind speed and humidity, Fahrenheit and Celsius options, Location definition

**In-app purchases:** none


## Frequently asked questions

### Is Thermometer++ App free?

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

### Is Mercure free?

Mercure is free to download, with no in-app purchases.

### Which has better reviews, Thermometer++ App or Mercure?

Thermometer++ App is rated higher. Thermometer++ App averages 4.7 out of 5 from 7.3K ratings, while Mercure averages 4.0 from 5 ratings.

### Do Thermometer++ App or Mercure have ads?

Both Thermometer++ App and Mercure show ads.

### Which is updated more often, Thermometer++ App or Mercure?

Thermometer++ App ships an update every 5 weeks, and Mercure monthly. Most recently, Thermometer++ App was updated on November 11, 2026 and Mercure on November 3, 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.*