# Jam Synth vs jAmp IR

The clearest difference is in-app purchases: jAmp IR at none against Jam Synth's 4. jAmp IR also leads on update cadence (every 2 weeks vs every 4 months) and review sentiment (100% vs 84%). Jam Synth's advantage is iOS requirement (12.0 vs 14.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Jam Synth sells 4 one-off in-app purchases. jAmp IR asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Jam Synth against 5.0 for jAmp IR. Both are backed by a comparable volume of ratings — 28 and 13 respectively. Written reviews are what separate them: 84% of Jam Synth's written reviews are positive against 100% of jAmp IR's.

Jam Synth ships an update every 4 months, jAmp IR every 2 weeks. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Jam Synth | jAmp IR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (28 ratings)](https://appshunter.io/ios/app/jam-synth/id732618765/reviews) | [5.0 (13 ratings)](https://appshunter.io/ios/app/jamp-ir/id6476031801/reviews) |
| Number of ratings | **28** | 13 |
| Positive reviews | 84.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 1 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Derek Mesecar](https://appshunter.io/developer/505825864) | [Jan Maes](https://appshunter.io/developer/1550506252) |

## 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 |


### jAmp IR

[App page](https://appshunter.io/ios/app/jamp-ir/id6476031801)

This tool loads impulse responses for guitar and bass amp cabinet simulation. It allows mixing two impulse responses and offers fine control over filters, gain, and phase. The app includes five high-quality impulse responses.

**Highlights:** Impulse response loader, Cabinet simulator for guitar and bass, Mix two impulse responses, High and low pass filters, Gain control, Phase inversion

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Jam Synth free?

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

### Is jAmp IR free?

jAmp IR is free to download, with no in-app purchases.

### Which has better reviews, Jam Synth or jAmp IR?

Jam Synth and jAmp IR are both rated 5.0 out of 5 on the App Store, from 28 and 13 ratings respectively.

### Do Jam Synth or jAmp IR have ads?

Neither Jam Synth nor jAmp IR shows ads.

### Which is updated more often, Jam Synth or jAmp IR?

Jam Synth ships an update every 4 months, and jAmp IR every 2 weeks. Most recently, Jam Synth was updated on September 18, 2026 and jAmp IR on September 23, 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.*