# Jam Synth vs Roxsyn Guitar Synthesizer

The clearest difference is price: Jam Synth at Free against Roxsyn Guitar Synthesizer's $19.99. Jam Synth also leads on rating (5.0 vs 4.7) and update cadence (every 4 months vs every 9 months). Roxsyn Guitar Synthesizer's advantage is in-app purchases (none vs 4) and ratings volume (90 vs 28). On ads and device support there is nothing between them.

Jam Synth is free to download; Roxsyn Guitar Synthesizer costs $19.99 up front. Jam Synth sells 4 one-off in-app purchases. Roxsyn Guitar Synthesizer asks for nothing beyond the download.

Jam Synth holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 28 and 90 respectively. Written reviews point the same way: 84% of Jam Synth's written reviews are positive against 75% of Roxsyn Guitar Synthesizer's.

Jam Synth ships an update every 4 months, Roxsyn Guitar Synthesizer every 9 months. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Jam Synth | Roxsyn Guitar Synthesizer |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | **[5.0 (28 ratings)](https://appshunter.io/ios/app/jam-synth/id732618765/reviews)** | [4.7 (90 ratings)](https://appshunter.io/ios/app/roxsyn-guitar-synthesizer/id1472450599/reviews) |
| Number of ratings | 28 | **90** |
| Positive reviews | **84.2% of reviews** | 74.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 5 MB | 32 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Derek Mesecar](https://appshunter.io/developer/505825864) | [Yonac Inc.](https://appshunter.io/developer/288670023) |

## What reviewers say

### Jam Synth

[App page](https://appshunter.io/ios/app/jam-synth/id732618765)

Transform your guitar into a synthesizer with this app. It accurately tracks pitch and amplitude to control digital oscillators, offering unique synth leads and effects. Go beyond MIDI with expressive, organic sounds and advanced modulation options.

**Highlights:** Monophonic guitar synthesizer, Pitch and amplitude tracking, Multiple oscillator wave shapes, Dynamic filter tracking, Advanced FX section (LFO, Delay, Harmonizer, etc.), MIDI output for external synths, High-accuracy pitch tuner

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intelligent Harmonizer | Free | one-time |
| Rotary Vibe | Free | one-time |
| Rainbows | Free | one-time |
| Time Stopper | Free | one-time |


### Roxsyn Guitar Synthesizer

[App page](https://appshunter.io/ios/app/roxsyn-guitar-synthesizer/id1472450599)

Transform your guitar or bass into a powerful, expressive polyphonic synthesizer without MIDI. This app synthesizes your instrument directly, capturing every nuance of your playing for rich, responsive synth sounds. No special pickups or hardware needed, just connect to your audio interface.

**Highlights:** Direct guitar synthesis (no MIDI), Metamorphic signal generators (oscillators), Dual filter banks with custom virtual-analog filters, Guitar-optimized envelopes with adjustable triggers, Powerful arpeggiator with multiple algorithms, Modulation matrix for parameter control

**In-app purchases:** none


## Frequently asked questions

### Is Jam Synth free?

Jam Synth is free to download, with in-app purchases available.

### Is Roxsyn Guitar Synthesizer free?

Roxsyn Guitar Synthesizer costs $19.99, with no in-app purchases.

### Which has better reviews, Jam Synth or Roxsyn Guitar Synthesizer?

Jam Synth is rated higher. Jam Synth averages 5.0 out of 5 from 28 ratings, while Roxsyn Guitar Synthesizer averages 4.7 from 90 ratings.

### Do Jam Synth or Roxsyn Guitar Synthesizer have ads?

Neither Jam Synth nor Roxsyn Guitar Synthesizer shows ads.

### Which is updated more often, Jam Synth or Roxsyn Guitar Synthesizer?

Jam Synth ships an update every 4 months, and Roxsyn Guitar Synthesizer every 9 months. Most recently, Jam Synth was updated on September 18, 2026 and Roxsyn Guitar Synthesizer on September 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.*