# SpellSynth vs Raw Byte Audio Machine

The clearest difference is review sentiment: Raw Byte Audio Machine at 100% against SpellSynth's 50%. Raw Byte Audio Machine also leads on rating (5.0 vs 3.2) and price ($0.99 vs $2.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

SpellSynth costs $2.99 and Raw Byte Audio Machine $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Raw Byte Audio Machine holds the better App Store score, 5.0 against 3.2. Both are backed by a comparable volume of ratings — 11 and 4 respectively. Written reviews point the same way: 50% of SpellSynth's written reviews are positive against 100% of Raw Byte Audio Machine's.

Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SpellSynth | Raw Byte Audio Machine |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | [3.2 (11 ratings)](https://appshunter.io/ios/app/spellsynth-retro-vocal-synth/id6762822700/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/raw-byte-audio-machine/id6766166760/reviews)** |
| Number of ratings | **11** | 4 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | Every 6 days |
| Monetization | Paid | Paid |
| Size | 112 MB | 2 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chih Han Lin](https://appshunter.io/developer/1800248325) | [Callback Audio, LLC](https://appshunter.io/developer/1896220942) |

## What reviewers say

### SpellSynth

[App page](https://appshunter.io/ios/app/spellsynth-retro-vocal-synth/id6762822700)

This app recreates a classic 1978 spelling toy with four engaging game modes. It allows users to type any word or phrase and hear it spoken aloud using vintage synthesized voices. Explore different speech synthesis eras and even play the keypad with a MIDI keyboard.

**Highlights:** Type and hear any word spoken, Four game modes (Free Play, Spell, Mystery Word, Say It), Three distinct vintage voice characters, MIDI keyboard support, Export audio to WAV, Adjustable gap between words

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

**In-app purchases:** none


### Raw Byte Audio Machine

[App page](https://appshunter.io/ios/app/raw-byte-audio-machine/id6766166760)

This app generates complex musical patterns using a single sawtooth wave and a powerful expression engine. It supports binary and bitwise operations to create rhythms, harmonies, and melodies. Operates as a standalone app or an AUv3 instrument plugin.

**Highlights:** Sawtooth wave synthesis, Expression engine for sound design, Binary and bitwise operations, Rhythm, harmony, and melody generation, Standalone app, AUv3 instrument plugin

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SpellSynth free?

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

### Is Raw Byte Audio Machine free?

Raw Byte Audio Machine costs $0.99, with no in-app purchases.

### Which has better reviews, SpellSynth or Raw Byte Audio Machine?

Raw Byte Audio Machine is rated higher. SpellSynth averages 3.2 out of 5 from 11 ratings, while Raw Byte Audio Machine averages 5.0 from 4 ratings.

### Do SpellSynth or Raw Byte Audio Machine have ads?

Neither SpellSynth nor Raw Byte Audio Machine shows ads.

### Which is updated more often, SpellSynth or Raw Byte Audio Machine?

SpellSynth ships an update every 6 days, and Raw Byte Audio Machine every 6 days. Most recently, SpellSynth was updated on October 19, 2026 and Raw Byte Audio Machine on October 13, 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.*