# Compass Map Barometer vs Sensor

The clearest difference is rating: Compass Map Barometer at 4.4 against Sensor's 4.0. Compass Map Barometer also leads on ratings volume (130 vs 4) and iOS requirement (13 vs 27.0). Sensor's advantage is update cadence (every 2 months vs every 7 months) and review sentiment (56% vs 38%). On price, ads, in-app purchases and device support there is nothing between them.

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

Compass Map Barometer holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Compass Map Barometer has 130 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 38% of Compass Map Barometer's written reviews are positive against 56% of Sensor's, so the app with the better star average is not the one people write more warmly about.

Compass Map Barometer ships an update every 7 months, Sensor every 2 months. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Compass Map Barometer | Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (130 ratings)](https://appshunter.io/ios/app/compass-map-barometer/id553118179/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/sensor-app/id1466399692/reviews) |
| Number of ratings | **130** | 4 |
| Positive reviews | 38.5% of reviews | **55.6% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Ad-supported | **Free** |
| Size | 10 MB | 47 MB |
| Requires iOS | **13** | 27.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Volker Schmitt](https://appshunter.io/developer/1466399691) |

## What reviewers say

### Compass Map Barometer

[App page](https://appshunter.io/ios/app/compass-map-barometer/id553118179)

This application provides a digital compass to easily identify cardinal directions and any arbitrary direction. It offers the flexibility to switch between magnetic and true north, and includes a map rotation feature. A barometer function is also available on compatible devices.

**Highlights:** Electronic compass, Magnetic and true north modes, Map rotation, Barometer function, Designates cardinal directions

**Features:** Vision Pro support

**In-app purchases:** none


### Sensor

[App page](https://appshunter.io/ios/app/sensor-app/id1466399692)

Access and utilize all your device's sensors with this comprehensive tool. Explore GPS, gyroscope, acceleration, magnetometer, altimeter, and attitude data for various applications and research.

**Highlights:** Access GPS for precise location, Utilize gyroscope for orientation, Measure acceleration and movement, Detect magnetic fields with magnetometer, Access altimeter and pressure data, Monitor device attitude (roll, pitch, yaw)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Compass Map Barometer free?

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

### Is Sensor free?

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

### Which has better reviews, Compass Map Barometer or Sensor?

Compass Map Barometer is rated higher. Compass Map Barometer averages 4.4 out of 5 from 130 ratings, while Sensor averages 4.0 from 4 ratings.

### Do Compass Map Barometer or Sensor have ads?

Both Compass Map Barometer and Sensor show ads.

### Which is updated more often, Compass Map Barometer or Sensor?

Compass Map Barometer ships an update every 7 months, and Sensor every 2 months. Most recently, Compass Map Barometer was updated on October 7, 2026 and Sensor 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.*