# Altimeter vs Omni Meter

The clearest difference is device support: Omni Meter at 3 against Altimeter's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Altimeter sells 3 in-app purchases, starting at $2.99 per 7 days and Omni Meter sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Altimeter ships an update every 4 weeks, Omni Meter every 3 weeks. The most recent releases landed on October 20, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Altimeter | Omni Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Size | 8 MB | 7 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [Zinc White Limited](https://appshunter.io/developer/1836956615) |

## What reviewers say

### Altimeter

[App page](https://appshunter.io/ios/app/altimeter-gps-elevation/id6772261844)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Climb Log: Weekly | $2.99 | per 7 days |
| Summit Height: Yearly | $14.99 | per year |
| Offline Altitude: Pay Once | $29.99 | one-time |


### 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 Altimeter free?

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

### Is Omni Meter free?

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

### Do Altimeter or Omni Meter have ads?

Neither Altimeter nor Omni Meter shows ads.

### Which is updated more often, Altimeter or Omni Meter?

Altimeter ships an update every 4 weeks, and Omni Meter every 3 weeks. Most recently, Altimeter was updated on October 20, 2026 and Omni Meter on October 23, 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.*