# Thermometer++ App vs Blue Map

The clearest difference is in-app purchases: Blue Map at none against Thermometer++ App's 3. Blue Map also leads on ads (none vs shown) and rating (5.0 vs 4.7). Thermometer++ App's advantage is ratings volume (7.2K vs 2) and chart position (#131 vs unranked). On price, review sentiment 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. Blue Map asks for nothing beyond the download.

Blue Map holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Thermometer++ App has 7.2K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 76% of Thermometer++ App's written reviews are positive against 71% of Blue Map's, so the app with the better star average is not the one people write more warmly about.

Thermometer++ App ships an update every 5 weeks, Blue Map every 2 weeks. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Thermometer++ App | Blue Map |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (7.2K ratings)](https://appshunter.io/ios/app/thermometer-plus-plus-app/id704237014/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/blue-map/id838211758/reviews)** |
| Number of ratings | **7.2K** | 2 |
| Positive reviews | **75.5% of reviews** | 71.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#131** | — |
| Size | 22 MB | 127 MB |
| Requires iOS | 17.6 | **15** |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Viachaslau Tysianchuk](https://appshunter.io/developer/704237017) | [北京市朝阳区公众环境研究中心](https://appshunter.io/developer/838211761) |

## What reviewers say

### Thermometer++ App

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

**Currently charting:** #131 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


### Blue Map

[App page](https://appshunter.io/ios/app/blue-map/id838211758)

Access global environmental data, including air and water quality, corporate emissions, and ecological information. Participate in environmental protection by reporting pollution, sharing data, and tracking your low-carbon actions. Visualize environmental conditions with interactive maps and receive AI-driven insights and health alerts.

**Highlights:** Real-time environmental quality data, Corporate emissions and performance tracking, Public pollution reporting and action, Interactive environmental maps, AI-powered data insights, Personalized health and environmental alerts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Thermometer++ App free?

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

### Is Blue Map free?

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

### Which has better reviews, Thermometer++ App or Blue Map?

Blue Map is rated higher. Thermometer++ App averages 4.7 out of 5 from 7.2K ratings, while Blue Map averages 5.0 from 2 ratings.

### Do Thermometer++ App or Blue Map have ads?

Thermometer++ App shows ads; Blue Map does not.

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

Thermometer++ App ships an update every 5 weeks, and Blue Map every 2 weeks. Most recently, Thermometer++ App was updated on September 28, 2026 and Blue Map 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.*