# Compass Map Barometer vs EngineerCalc

The clearest difference is price: Compass Map Barometer at Free against EngineerCalc's $1.99. Compass Map Barometer also leads on update cadence (every 7 months vs every 60 months). EngineerCalc's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Compass Map Barometer is free to download; EngineerCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Compass Map Barometer ships an update every 7 months, EngineerCalc every 60 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Compass Map Barometer | EngineerCalc |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.4 (130 ratings)](https://appshunter.io/ios/app/compass-map-barometer/id553118179/reviews)** | — |
| Number of ratings | **130** | — |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 7 months** | Every 60 months |
| Monetization | Ad-supported | — |
| Size | 10 MB | 10 MB |
| Requires iOS | 13 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [oskari saarinen](https://appshunter.io/developer/1234576917) |

## 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


### EngineerCalc

[App page](https://appshunter.io/ios/app/engineercalc/id1454820389)

**Features:** macOS Compatibility

**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 EngineerCalc free?

EngineerCalc costs $1.99, with no in-app purchases.

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

Compass Map Barometer shows ads; EngineerCalc does not.

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

Compass Map Barometer ships an update every 7 months, and EngineerCalc every 60 months. Most recently, Compass Map Barometer was updated on October 7, 2026 and EngineerCalc on October 2, 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.*