# PreSens Wireless Studio vs Barrel Monkey

The clearest difference is iOS requirement: Barrel Monkey at 12.0 against PreSens Wireless Studio's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PreSens Wireless Studio ships an update every 2 months, Barrel Monkey every 3 months. The most recent releases landed on September 10, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | PreSens Wireless Studio | Barrel Monkey |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 56 MB | 75 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [PreSens Precision Sensing GmbH](https://appshunter.io/developer/1460253859) | [Barrel Monkey LLC](https://appshunter.io/developer/1716272252) |

## What reviewers say

### PreSens Wireless Studio

[App page](https://appshunter.io/ios/app/presens-wireless-studio/id1460253860)

This application allows users to connect to Bluetooth-enabled oxygen meters for configuration, measurement, and data management. It supports live viewing of oxygen concentration and exporting data in various formats.

**Highlights:** Bluetooth oxygen meter connection, Device configuration, Live oxygen measurement display, Measurement data management, Data export to CSV, XLSX, PDF

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

**In-app purchases:** none


### Barrel Monkey

[App page](https://appshunter.io/ios/app/barrel-monkey/id6472196624)

**In-app purchases:** none


## Frequently asked questions

### Is PreSens Wireless Studio free?

PreSens Wireless Studio is free to download, with no in-app purchases.

### Is Barrel Monkey free?

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

### Do PreSens Wireless Studio or Barrel Monkey have ads?

Neither PreSens Wireless Studio nor Barrel Monkey shows ads.

### Which is updated more often, PreSens Wireless Studio or Barrel Monkey?

PreSens Wireless Studio ships an update every 2 months, and Barrel Monkey every 3 months. Most recently, PreSens Wireless Studio was updated on September 10, 2026 and Barrel Monkey on May 19, 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.*