# Sistema Buttrio vs Ötzi Audio Guide

The clearest difference is price: Sistema Buttrio at Free against Ötzi Audio Guide's $1.99. Ötzi Audio Guide's advantage is update cadence (weekly vs every 12 months) and iOS requirement (12.1 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Sistema Buttrio is free to download; Ötzi Audio Guide costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sistema Buttrio ships an update every 12 months, Ötzi Audio Guide weekly. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Sistema Buttrio | Ötzi Audio Guide |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Size | 18 MB | 39 MB |
| Requires iOS | 15.1 | **12.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LARIN SRL SEMPLIFICATA](https://appshunter.io/developer/828339655) | [Museo Archeologico dell’Alto Adige](https://appshunter.io/developer/914520156) |

## What reviewers say

### Sistema Buttrio

[App page](https://appshunter.io/ios/app/sistema-buttrio/id6463127675)

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

**In-app purchases:** none


### Ötzi Audio Guide

[App page](https://appshunter.io/ios/app/otzi-audio-guide/id6473792079)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sistema Buttrio free?

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

### Is Ötzi Audio Guide free?

Ötzi Audio Guide costs $1.99, with no in-app purchases.

### Do Sistema Buttrio or Ötzi Audio Guide have ads?

Neither Sistema Buttrio nor Ötzi Audio Guide shows ads.

### Which is updated more often, Sistema Buttrio or Ötzi Audio Guide?

Sistema Buttrio ships an update every 12 months, and Ötzi Audio Guide weekly. Most recently, Sistema Buttrio was updated on November 7, 2026 and Ötzi Audio Guide on November 12, 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.*