# PolyPipe vs Evil Otto

The clearest difference is price: Evil Otto at $4.99 against PolyPipe's $14.99. PolyPipe's advantage is review sentiment (75% vs 50%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

PolyPipe costs $14.99 and Evil Otto $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for PolyPipe against 4.5 for Evil Otto. Both are backed by a comparable volume of ratings — 10 and 4 respectively. Written reviews are what separate them: 75% of PolyPipe's written reviews are positive against 50% of Evil Otto's.

## The numbers

| Metric | PolyPipe | Evil Otto |
| --- | --- | --- |
| Price | $14.99 | **$4.99** |
| Rating | **[4.6 (10 ratings)](https://appshunter.io/ios/app/polypipe/id6758938642/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/evil-otto/id6760843522/reviews) |
| Number of ratings | **10** | 4 |
| Positive reviews | **75.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Paid | Paid |
| Size | 31 MB | 60 MB |
| Requires iOS | 13 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [4Pockets.com](https://appshunter.io/developer/370131860) | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) |

## What reviewers say

### PolyPipe

[App page](https://appshunter.io/ios/app/polypipe/id6758938642)

This app is a multi-lane polyphonic sequencer plugin for creating evolving musical patterns. It allows for independent control of rhythm, pitch, and modulation across multiple lanes, generating complex and unique sequences in real-time. Ideal for generative music and experimental pattern creation.

**Highlights:** Multi-lane sequencer with 4 independent lanes, Pattern-based structure with multiple patterns per lane, Advanced step parameters (pitch, velocity, gate, probability), Chord-aware steps and chord strumming, Multiple step modes (random, chord, bass, hybrid), Polyrhythmic playback with differing lane/pattern lengths, Probabilistic sequencing with per-step chance

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

**In-app purchases:** none


### Evil Otto

[App page](https://appshunter.io/ios/app/evil-otto/id6760843522)

This audio effect applies simultaneous upward and downward compression across three frequency bands for detailed sound. It offers precise control over audio dynamics and includes features like sidechain input and real-time metering.

**Highlights:** Three-band OTT compression, Precise control parameters, Sidechain input for rhythmic effects, Real-time metering per band, Factory and user presets, Cross-platform preset compatibility

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

**In-app purchases:** none


## Frequently asked questions

### Is PolyPipe free?

PolyPipe costs $14.99, with no in-app purchases.

### Is Evil Otto free?

Evil Otto costs $4.99, with no in-app purchases.

### Which has better reviews, PolyPipe or Evil Otto?

PolyPipe is rated higher. PolyPipe averages 4.6 out of 5 from 10 ratings, while Evil Otto averages 4.5 from 4 ratings.

### Do PolyPipe or Evil Otto have ads?

Neither PolyPipe nor Evil Otto 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.*