# pOus vs Hearing Space

The clearest difference is price: Hearing Space at Free against pOus's $2.99. Hearing Space also leads on update cadence (every 4 days vs every 4 months) and ratings volume (3 vs 1). pOus's advantage is rating (5.0 vs 4.7) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Hearing Space is free to download; pOus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

pOus holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

pOus ships an update every 4 months, Hearing Space every 4 days. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | pOus | Hearing Space |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pous/id6748279554/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/hearing-space-time/id6758031265/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Paid | **Free** |
| Size | 15 MB | 261 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Satoshi Kajii](https://appshunter.io/developer/1777441634) | [Jing Dong](https://appshunter.io/developer/1563297410) |

## What reviewers say

### pOus

[App page](https://appshunter.io/ios/app/pous/id6748279554)

This app emulates analog drum machine bass drums with adjustable tuning and decay. It offers MIDI OUT functionality for envelope follower data and a scale mode for playing musical scales. Designed for musicians using AUv3 hosts.

**Highlights:** BassDrum emulation, Adjustable tune and decay, MIDI OUT envelope follower, Scale mode for musical notes, AUv3 instrument, MIDI CC routing

**In-app purchases:** none


### Hearing Space

[App page](https://appshunter.io/ios/app/hearing-space-time/id6758031265)

This experimental art application uses AI and machine vision to analyze images, inferring spatial depth and structure. It then transforms these spatial relationships into interactive soundscapes, allowing users to explore a non-human model of space through touch. The app treats your device as a perceptual instrument to reveal AI's internal logic.

**Highlights:** AI-based image analysis, Machine vision for spatial inference, Interactive sound generation, Touch-based sonic exploration, Perceptual instrument interface, Artistic and exploratory experience

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is pOus free?

pOus costs $2.99, with no in-app purchases.

### Is Hearing Space free?

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

### Which has better reviews, pOus or Hearing Space?

pOus is rated higher. pOus averages 5.0 out of 5 from 1 ratings, while Hearing Space averages 4.7 from 3 ratings.

### Do pOus or Hearing Space have ads?

Neither pOus nor Hearing Space shows ads.

### Which is updated more often, pOus or Hearing Space?

pOus ships an update every 4 months, and Hearing Space every 4 days. Most recently, pOus was updated on October 8, 2026 and Hearing Space on October 24, 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.*