# Rio Serrano vs Altimeter Pro USA

The clearest difference is price: Rio Serrano at Free against Altimeter Pro USA's $0.99. Rio Serrano also leads on iOS requirement (13.0 vs 17.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Rio Serrano is free to download; Altimeter Pro USA costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Rio Serrano ships an update every 4 months, Altimeter Pro USA every 6 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | Rio Serrano | Altimeter Pro USA |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Size | 14 MB | 8 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hoteza Limited](https://appshunter.io/developer/1466216895) | [Emanuel David Weber](https://appshunter.io/developer/1825191792) |

## What reviewers say

### Rio Serrano

[App page](https://appshunter.io/ios/app/rio-serrano/id6469041142)

**Features:** macOS Compatibility

**In-app purchases:** none


### Altimeter Pro USA

[App page](https://appshunter.io/ios/app/altimeter-pro-usa/id6748415005)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rio Serrano free?

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

### Is Altimeter Pro USA free?

Altimeter Pro USA costs $0.99, with no in-app purchases.

### Do Rio Serrano or Altimeter Pro USA have ads?

Neither Rio Serrano nor Altimeter Pro USA shows ads.

### Which is updated more often, Rio Serrano or Altimeter Pro USA?

Rio Serrano ships an update every 4 months, and Altimeter Pro USA every 6 months. Most recently, Rio Serrano was updated on October 30, 2026 and Altimeter Pro USA on October 30, 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.*