# iAWOS vs Altimeter

The clearest difference is in-app purchases: Altimeter at none against iAWOS's 1. Altimeter also leads on iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. iAWOS sells 1 one-off in-app purchase. Altimeter asks for nothing beyond the download.

## The numbers

| Metric | iAWOS | Altimeter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 56 MB | 38 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [William Beal](https://appshunter.io/developer/1315028731) | [Tirin](https://appshunter.io/developer/1665717789) |

## What reviewers say

### iAWOS

[App page](https://appshunter.io/ios/app/iawos/id6759291473)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iAWOS Supporter | $2.99 | one-time |


### Altimeter

[App page](https://appshunter.io/ios/app/altimeter-altitude-tracker/id6790546807)

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

**In-app purchases:** none


## Frequently asked questions

### Is iAWOS free?

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

### Is Altimeter free?

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

### Do iAWOS or Altimeter have ads?

Neither iAWOS nor Altimeter 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.*