# Evil Otto vs Raven Synth

The clearest difference is review sentiment: Raven Synth at 100% against Evil Otto's 50%. Raven Synth also leads on rating (5.0 vs 4.5). Evil Otto's advantage is price ($4.99 vs $6.99) and iOS requirement (12.0 vs 17.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Evil Otto costs $4.99 and Raven Synth $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Raven Synth holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 50% of Evil Otto's written reviews are positive against 100% of Raven Synth's.

## The numbers

| Metric | Evil Otto | Raven Synth |
| --- | --- | --- |
| Price | **$4.99** | $6.99 |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/evil-otto/id6760843522/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/raven-synth/id6761521717/reviews)** |
| Number of ratings | 4 | **5** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Monetization | Paid | Paid |
| Size | 60 MB | 10 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) | [Steffen Mølgaard Larsen](https://appshunter.io/developer/1860980002) |

## What reviewers say

### 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


### Raven Synth

[App page](https://appshunter.io/ios/app/raven-synth/id6761521717)

This powerful wavetable synthesizer allows musicians to draw custom waveforms and morph between them. Sculpt evolving textures with a deep effects chain and performance-ready interface for sound design and live playing.

**Highlights:** Dual drawable oscillators with wavetable morphing, Utility oscillator with sub, ring mod, FM, noise, and harmonics, Classic ladder filter with 12/24dB slope, Dual ADSR envelopes for filter and amp, Dual LFOs with drawable waveforms and modulation slots, Full effects chain including delay, reverb, chorus, and distortion, AUv3 instrument and MIDI support

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

**In-app purchases:** none


## Frequently asked questions

### Is Evil Otto free?

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

### Is Raven Synth free?

Raven Synth costs $6.99, with no in-app purchases.

### Which has better reviews, Evil Otto or Raven Synth?

Raven Synth is rated higher. Evil Otto averages 4.5 out of 5 from 4 ratings, while Raven Synth averages 5.0 from 5 ratings.

### Do Evil Otto or Raven Synth have ads?

Neither Evil Otto nor Raven Synth 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.*