# Offline Compass Altimeter vs Omni Meter

The clearest difference is in-app purchases: Offline Compass Altimeter at none against Omni Meter's 3. Offline Compass Altimeter also leads on iOS requirement (15.6 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Omni Meter sells 3 in-app purchases, starting at $0.99 per month. Offline Compass Altimeter asks for nothing beyond the download.

## The numbers

| Metric | Offline Compass Altimeter | Omni Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 4 MB | 7 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [栋梁 刘](https://appshunter.io/developer/1888110676) | [Zinc White Limited](https://appshunter.io/developer/1836956615) |

## What reviewers say

### Offline Compass Altimeter

[App page](https://appshunter.io/ios/app/offline-compass-altimeter/id6762721848)

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

**In-app purchases:** none


### Omni Meter

[App page](https://appshunter.io/ios/app/omni-meter/id6778650835)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus (All Features Monthly) | $0.99 | per month |
| Omni Meter Plus Yearly | $3.99 | per year |
| Omni Meter Plus Lifetime | $5.99 | one-time |


## Frequently asked questions

### Is Offline Compass Altimeter free?

Offline Compass Altimeter is free to download, with no in-app purchases.

### Is Omni Meter free?

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

### Do Offline Compass Altimeter or Omni Meter have ads?

Neither Offline Compass Altimeter nor Omni Meter shows ads.

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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.*