# Altimeter & Precision vs Compass

The clearest difference is price: Compass at Free against Altimeter & Precision's $0.99. Altimeter & Precision's advantage is in-app purchases (none vs 4) and update cadence (monthly vs every 7 months). On rating, ratings volume, ads and device support there is nothing between them.

Compass is free to download; Altimeter & Precision costs $0.99 up front. Compass sells 4 in-app purchases, starting at $0.99 per month. Altimeter & Precision asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Altimeter & Precision against 4.7 for Compass. Both are backed by a comparable volume of ratings — 1.4K and 2.4K respectively. Written reviews are what separate them: 92% of Altimeter & Precision's written reviews are positive against 67% of Compass's.

Altimeter & Precision ships an update monthly, Compass every 7 months. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Altimeter & Precision | Compass |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (1.4K ratings)](https://appshunter.io/ios/app/altimeter-and-precision-simple/id956232336/reviews)** | [4.7 (2.4K ratings)](https://appshunter.io/ios/app/compass-professional/id1289069674/reviews) |
| Number of ratings | 1.4K | **2.4K** |
| Positive reviews | **92.3% of reviews** | 66.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 8 MB | 19 MB |
| Requires iOS | 12.0 | 12 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Studio Nano Ship, Inc.](https://appshunter.io/developer/818733631) | [Peter Bohl](https://appshunter.io/developer/1075788156) |

## What reviewers say

### Altimeter & Precision

[App page](https://appshunter.io/ios/app/altimeter-and-precision-simple/id956232336)

This app provides accurate altitude and GPS coordinates, trusted by thousands for over 7 years. It prioritizes user privacy with no data collection or sharing. Customize your experience with various background colors.

**Highlights:** Accuracy Display, No Annoying Ads, No data collected or shared, 16 Background Colors, Altitude Measurement, GPS Coordinates

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🔍 Accurate altitude readings
- 🗺️ Useful map integration
- 🔋 Reliable performance
- 💻 Works well on multiple devices

**What reviewers complain about**

- 🐛 Inconsistent altitude readings
- 🔒 Lack of customization options
- 🤖 Issues with GPS/location tracking
- 💰 Paid features not worth the cost

**Reported bugs**

- App crashes when switching to map view
- Altitude readings not updating correctly

**Requested features**

- Add iPad support
- Provide more detailed location information
- Include weather data integration
- Improve map functionality


### Compass

[App page](https://appshunter.io/ios/app/compass-professional/id1289069674)

This app helps you navigate by displaying your direction on a compass, overlayed on a satellite or map view. It provides your street address, GPS coordinates, and altitude, along with What3Words coordinates for precise location identification.

**Highlights:** Compass direction display, Satellite and map view overlay, Street address and GPS coordinates, Altitude display, What3Words coordinates, Zoom functionality, Accuracy indicator

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AdFree and Widgets for 1 month | $0.99 | per month |
| 3 months ad-free + Widgets | $1.99 | per 3 months |
| 1 year Ad Free + Widgets | $4.99 | per year |
| Ad Free without limits | $10.99 | one-time |

**What reviewers like**

- 🚀 Accurate compass
- 👍 Useful features like location and elevation
- 🗺️ Detailed map overlay
- 🔍 Precise direction indication

**What reviewers complain about**

- 🐛 Compass direction inaccurate
- 🌐 Issues with non-English language support
- 💢 Annoying ads
- 🤔 Calibration problems

**Reported bugs**

- Compass direction completely off
- App crashes on launch
- Barometric pressure widget not working
- Location tracking issues

**Requested features**

- Option to remove ads
- Customizable compass display
- Improved calibration controls
- Support for imperial units


## Frequently asked questions

### Is Altimeter & Precision free?

Altimeter & Precision costs $0.99, with no in-app purchases.

### Is Compass free?

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

### Which has better reviews, Altimeter & Precision or Compass?

Altimeter & Precision is rated higher. Altimeter & Precision averages 4.8 out of 5 from 1.4K ratings, while Compass averages 4.7 from 2.4K ratings.

### Do Altimeter & Precision or Compass have ads?

Neither Altimeter & Precision nor Compass shows ads.

### Which is updated more often, Altimeter & Precision or Compass?

Altimeter & Precision ships an update monthly, and Compass every 7 months. Most recently, Altimeter & Precision was updated on October 20, 2026 and Compass on October 21, 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.*