# Thermometer vs bluSensor

The clearest difference is rating: Thermometer at 4.4 against bluSensor's 1.0. Thermometer also leads on review sentiment (30% vs 0%) and ratings volume (4.2K vs 5). bluSensor's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

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

Thermometer holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Thermometer has 4.2K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 30% of Thermometer's written reviews are positive against 0% of bluSensor's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 12, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Thermometer | bluSensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (4.2K ratings)](https://appshunter.io/ios/app/thermometer/id357949214/reviews)** | [1.0 (5 ratings)](https://appshunter.io/ios/app/blusensor/id1018752395/reviews) |
| Number of ratings | **4.2K** | 5 |
| Positive reviews | **30.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 48 MB | 31 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexandre Morcos](https://appshunter.io/developer/1453181584) | [Almendo Technologies GmbH](https://appshunter.io/developer/1018752244) |

## What reviewers say

### Thermometer

[App page](https://appshunter.io/ios/app/thermometer/id357949214)

This app transforms your iPhone or iPod Touch into a thermometer, displaying the exact outside temperature based on your current location. It provides detailed local weather conditions and allows you to check temperatures for other cities.

**Highlights:** Real-time outdoor temperature display, Location-based temperature readings, Local weather condition reports, Temperature checks for other cities, Celsius and Fahrenheit support, Universal app for all devices

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Temperature Forecast | $1.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Quick temperature display
- 💡 Useful for checking outdoor temperature

**What reviewers complain about**

- 🐛 Inaccurate temperature readings
- 🔍 Doesn't measure room/indoor temperature
- 💤 Doesn't update temperature in real-time
- 🔋 High battery consumption
- 📢 Excessive ads even in paid version

**Reported bugs**

- App crashes frequently
- Doesn't detect location properly
- Reported temperatures are inconsistent

**Requested features**

- Option to display indoor temperature
- Real-time temperature updates
- Ability to set temperature alerts/alarms


### bluSensor

[App page](https://appshunter.io/ios/app/blusensor/id1018752395)

Monitor temperature, humidity, and air quality with wireless sensors. Get real-time data, alerts, and historical tracking on your smartphone or tablet. Suitable for home and professional environments.

**Highlights:** Real-time environmental monitoring, Temperature and humidity tracking, Air quality alerts, Historical data logging, Smartphone and tablet compatibility, Web app access

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

**In-app purchases:** none


## Frequently asked questions

### Is Thermometer free?

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

### Is bluSensor free?

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

### Which has better reviews, Thermometer or bluSensor?

Thermometer is rated higher. Thermometer averages 4.4 out of 5 from 4.2K ratings, while bluSensor averages 1.0 from 5 ratings.

### Do Thermometer or bluSensor have ads?

Thermometer shows ads; bluSensor does not.

### Which is updated more often, Thermometer or bluSensor?

Thermometer ships an update every 2 months, and bluSensor every 2 months. Most recently, Thermometer was updated on October 12, 2026 and bluSensor on September 27, 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.*