# Audio Object vs iStem

The clearest difference is in-app purchases: Audio Object at none against iStem's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iStem sells 1 one-off in-app purchase. Audio Object asks for nothing beyond the download.

## The numbers

| Metric | Audio Object | iStem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/audio-object/id6783546700/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 12 MB | 79 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Green Rose Systems, LLC](https://appshunter.io/developer/6783546702) | [Jan Maes](https://appshunter.io/developer/1550506252) |

## What reviewers say

### Audio Object

[App page](https://appshunter.io/ios/app/audio-object/id6783546700)

This pocket-sized instrument turns your iPhone into a portable music creation studio. It features a four-track looper, a three-voice drum machine, and an eight-pad sampler with extensive editing capabilities. Seamlessly integrate with your Mac DAW via USB for professional workflows.

**Highlights:** Four-track looper with bar-quantized recording, Three-voice drum machine click track, Eight-pad sampler with EQ and varispeed, Project save, load, and WAV stem export, Stereo audio streaming to Mac DAWs via USB, MIDI clock output over USB, Records stereo from Core Audio interfaces

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

**In-app purchases:** none


### iStem

[App page](https://appshunter.io/ios/app/istem/id6793296941)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iStem Activation | $4.99 | one-time |


## Frequently asked questions

### Is Audio Object free?

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

### Is iStem free?

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

### Do Audio Object or iStem have ads?

Neither Audio Object nor iStem 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.*