# Blue Map vs Thermometer

The clearest difference is review sentiment: Blue Map at 71% against Thermometer's 2%. Blue Map also leads on rating (5.0 vs 3.4) and update cadence (every 2 weeks vs every 7 months). Thermometer's advantage is ratings volume (151 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Blue Map holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Thermometer has 151 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 71% of Blue Map's written reviews are positive against 2% of Thermometer's.

Blue Map ships an update every 2 weeks, Thermometer every 7 months. The most recent releases landed on September 27, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Blue Map | Thermometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/blue-map/id838211758/reviews)** | [3.4 (151 ratings)](https://appshunter.io/ios/app/thermometer-temperature-today/id6477575382/reviews) |
| Number of ratings | 2 | **151** |
| Positive reviews | **71.2% of reviews** | 1.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | Free | Free |
| Size | 127 MB | 13 MB |
| Requires iOS | **15** | 16.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京市朝阳区公众环境研究中心](https://appshunter.io/developer/838211761) | [yasser gourja](https://appshunter.io/developer/1729779142) |

## What reviewers say

### 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


### Thermometer

[App page](https://appshunter.io/ios/app/thermometer-temperature-today/id6477575382)

This app provides real-time ambient temperature and humidity readings, along with daily weather forecasts. It offers a user-friendly interface to check current conditions, humidity levels, and environmental data like wind speed and air pressure. Easily switch between measurement units for a personalized weather experience.

**Highlights:** Temperature estimation, Temperature and humidity checker, Weather temperature check, Hygrometer for humidity, Ambient weather insights, 7-day weather forecast, Multiple measurement units

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

**In-app purchases:** none

**What reviewers complain about**

- 🤥 Misleading app title/description
- ❌ Does not measure indoor temperature
- 📉 Basic weather information only
- 👎 Difficulty switching locations
- ❓ No clear instructions for use

**Requested features**

- Indoor temperature measurement
- Ability to switch locations
- Language options (e.g., German)
- Indoor temperature readings


## Frequently asked questions

### Is Blue Map free?

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

### Is Thermometer free?

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

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

Blue Map is rated higher. Blue Map averages 5.0 out of 5 from 2 ratings, while Thermometer averages 3.4 from 151 ratings.

### Do Blue Map or Thermometer have ads?

Neither Blue Map nor Thermometer shows ads.

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

Blue Map ships an update every 2 weeks, and Thermometer every 7 months. Most recently, Blue Map was updated on September 27, 2026 and Thermometer on September 29, 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.*