# Thermometer vs Bluon HVAC

The clearest difference is in-app purchases: Bluon HVAC at none against Thermometer's 1. Bluon HVAC also leads on rating (4.8 vs 4.4) and review sentiment (55% vs 30%). Thermometer's advantage is iOS requirement (13.0 vs 15.1). On price, ratings volume, ads and device support there is nothing between them.

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

Bluon HVAC holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 4.2K and 4.5K respectively. Written reviews point the same way: 30% of Thermometer's written reviews are positive against 55% of Bluon HVAC's.

Thermometer ships an update every 2 months, Bluon HVAC monthly. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Thermometer | Bluon HVAC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (4.2K ratings)](https://appshunter.io/ios/app/thermometer/id357949214/reviews) | **[4.8 (4.5K ratings)](https://appshunter.io/ios/app/bluon-hvac/id1357521880/reviews)** |
| Number of ratings | 4.2K | **4.5K** |
| Positive reviews | 29.9% of reviews | **54.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 48 MB | 170 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexandre Morcos](https://appshunter.io/developer/1453181584) | [Bluon, Inc.](https://appshunter.io/developer/1357521879) |

## 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


### Bluon HVAC

[App page](https://appshunter.io/ios/app/bluon-hvac/id1357521880)

Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.

**Highlights:** 500,000+ HVAC unit database, Manuals and part lists, AI troubleshooting tool (MasterMechanic), Live support from veteran techs, HVAC industry upgrade tools

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

**In-app purchases:** none

**What reviewers like**

- 🤖 Helpful tech support
- 💯 Comprehensive database of manuals and information
- 🛠️ Useful tools and calculators
- 🤝 Great customer service

**What reviewers complain about**

- 💰 Paywall for advanced features
- 🔒 Limited access without company account
- 🔍 Missing manuals for some equipment models
- 🗣️ Removal of helpful forums

**Reported bugs**

- Login/password reset issues
- Frequent crashes or loading problems

**Requested features**

- Individual technician subscription option
- More comprehensive coverage of HVAC equipment models
- Ability to access full manuals without restrictions


## Frequently asked questions

### Is Thermometer free?

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

### Is Bluon HVAC free?

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

### Which has better reviews, Thermometer or Bluon HVAC?

Bluon HVAC is rated higher. Thermometer averages 4.4 out of 5 from 4.2K ratings, while Bluon HVAC averages 4.8 from 4.5K ratings.

### Do Thermometer or Bluon HVAC have ads?

Both Thermometer and Bluon HVAC show ads.

### Which is updated more often, Thermometer or Bluon HVAC?

Thermometer ships an update every 2 months, and Bluon HVAC monthly. Most recently, Thermometer was updated on October 20, 2026 and Bluon HVAC on October 18, 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.*