# Celsius Thermometer Plus vs Professional Barometer

The clearest difference is rating: Celsius Thermometer Plus at 4.7 against Professional Barometer's 4.3. Celsius Thermometer Plus also leads on update cadence (every 7 months vs every 42 months) and ratings volume (54 vs 13). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Celsius Thermometer Plus sells 1 one-off in-app purchase and Professional Barometer sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Celsius Thermometer Plus holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 54 and 13 respectively. Written reviews complicate that: 38% of Celsius Thermometer Plus's written reviews are positive against 45% of Professional Barometer's, so the app with the better star average is not the one people write more warmly about.

Celsius Thermometer Plus ships an update every 7 months, Professional Barometer every 42 months. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Celsius Thermometer Plus | Professional Barometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (54 ratings)](https://appshunter.io/ios/app/celsius-thermometer-plus/id537067563/reviews)** | [4.3 (13 ratings)](https://appshunter.io/ios/app/professional-barometer/id1488299474/reviews) |
| Number of ratings | **54** | 13 |
| Positive reviews | 38.5% of reviews | **45.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 7 months** | Every 42 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 11 MB | 29 MB |
| Requires iOS | **13** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [FFZ srl](https://appshunter.io/developer/533499912) |

## What reviewers say

### Celsius Thermometer Plus

[App page](https://appshunter.io/ios/app/celsius-thermometer-plus/id537067563)

This app measures ambient temperature using GPS and displays it in Celsius, with a converter to Fahrenheit. It also includes a barometer and sunrise/sunset times. Useful for checking outdoor conditions and planning outfits.

**Highlights:** Ambient temperature measurement via GPS, Celsius to Fahrenheit conversion calculator, Barometric pressure sensor function, Sunrise and sunset time display, Temperature badge indicator

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Professional Barometer

[App page](https://appshunter.io/ios/app/professional-barometer/id1488299474)

This app provides real-time atmospheric pressure trends to forecast weather changes. It offers precise readings using device sensors and remote weather stations, displaying forecasts, temperature, and humidity. Users can also capture and share photos with superimposed weather data.

**Highlights:** Real-time atmospheric pressure trends, Weather forecasting, Multi-sensor data (device, GPS, remote), Analogue dial display, Temperature and humidity display, Photo capture with weather data overlay, Social media sharing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Month | $1.99 | per month |
| Premium 6 Months | $6.99 | per 6 months |
| Premium 1 Year | $11.99 | per year |


## Frequently asked questions

### Is Celsius Thermometer Plus free?

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

### Is Professional Barometer free?

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

### Which has better reviews, Celsius Thermometer Plus or Professional Barometer?

Celsius Thermometer Plus is rated higher. Celsius Thermometer Plus averages 4.7 out of 5 from 54 ratings, while Professional Barometer averages 4.3 from 13 ratings.

### Do Celsius Thermometer Plus or Professional Barometer have ads?

Both Celsius Thermometer Plus and Professional Barometer show ads.

### Which is updated more often, Celsius Thermometer Plus or Professional Barometer?

Celsius Thermometer Plus ships an update every 7 months, and Professional Barometer every 42 months. Most recently, Celsius Thermometer Plus was updated on October 14, 2026 and Professional Barometer on October 13, 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.*