# OUTSIDIFY vs éist

The clearest difference is price: éist at Free against OUTSIDIFY's $5.99. éist also leads on update cadence (every 3 days vs weekly). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

éist is free to download; OUTSIDIFY costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OUTSIDIFY ships an update weekly, éist every 3 days. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OUTSIDIFY | éist |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.9 (15 ratings)](https://appshunter.io/ios/app/outsidify/id6466588903/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Paid | — |
| Size | 8 MB | 32 MB |
| Requires iOS | 15.2 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BASTL INSTRUMENTS](https://appshunter.io/developer/1707501258) | [Aidan Reilly](https://appshunter.io/developer/1817285013) |

## What reviewers say

### OUTSIDIFY

[App page](https://appshunter.io/ios/app/outsidify/id6466588903)

Explore and manipulate ambient sounds using your smartphone's microphone and speaker. Create unique audio effects, capture environmental resonances, and experiment with sound in real-world spaces. Unleash your creativity and discover new sonic possibilities.

**Highlights:** Create feedback loops, Manipulate external sounds, Use phone as resonant filter, Capture impulse responses, Explore real-world acoustics

**In-app purchases:** none


### éist

[App page](https://appshunter.io/ios/app/eist/id6746519137)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OUTSIDIFY free?

OUTSIDIFY costs $5.99, with no in-app purchases.

### Is éist free?

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

### Do OUTSIDIFY or éist have ads?

Neither OUTSIDIFY nor éist shows ads.

### Which is updated more often, OUTSIDIFY or éist?

OUTSIDIFY ships an update weekly, and éist every 3 days. Most recently, OUTSIDIFY was updated on October 24, 2026 and éist on October 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.*