# Music Theory Decoder vs Pro

The clearest difference is price: Music Theory Decoder at $4.99 against Pro's $7.99. Pro's advantage is chart position (#113 vs unranked) and iOS requirement (14.4 vs 16.6). On ads, in-app purchases and device support there is nothing between them.

Music Theory Decoder costs $4.99 and Pro $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Music Theory Decoder | Pro |
| --- | --- | --- |
| Price | **$4.99** | $7.99 |
| Rating | — | **[4.8 (78 ratings)](https://appshunter.io/ios/app/pro-a5-synth-plus-auv3/id6764386977/reviews)** |
| Number of ratings | — | **78** |
| Positive reviews | — | 95.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Monetization | — | Paid |
| Best chart rank | — | **#113** |
| Size | 39 MB | 64 MB |
| Requires iOS | 16.6 | **14.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tomi Nevalainen](https://appshunter.io/developer/1271805172) | [AudioKit Pro](https://appshunter.io/developer/1307785645) |

## What reviewers say

### Music Theory Decoder

[App page](https://appshunter.io/ios/app/music-theory-decoder/id6763486860)

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

**In-app purchases:** none


### Pro

[App page](https://appshunter.io/ios/app/pro-a5-synth-plus-auv3/id6764386977)

**Currently charting:** #113 Top Paid · Music (US App Store)

This app emulates the sound of an iconic analog poly synthesizer, offering a wide range of sonic possibilities from warm pads to soaring leads. It features advanced modeling, multiple filter styles, and extensive customization options for musicians.

**Highlights:** 10-voice polyphonic analog synth emulation, Authentic Poly-Mod and filter modeling, Dual filter styles: Classic Stepped and Modern Smooth, Extensive preset library with 600+ sounds, Microtonality panel with 150 curated scales, AUv3 plugin support for DAWs, Vintage-style step sequencer and arpeggiator

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Music Theory Decoder free?

Music Theory Decoder costs $4.99, with no in-app purchases.

### Is Pro free?

Pro costs $7.99, with no in-app purchases.

### Do Music Theory Decoder or Pro have ads?

Neither Music Theory Decoder nor Pro 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.*