# Hivolt 103 Custom vs jAmp IR

The clearest difference is price: jAmp IR at Free against Hivolt 103 Custom's $9.99. jAmp IR also leads on update cadence (every 2 weeks vs every 56 months) and ratings volume (15 vs 4). Hivolt 103 Custom's advantage is rating (5.0 vs 4.7). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

jAmp IR is free to download; Hivolt 103 Custom costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Hivolt 103 Custom holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 4 and 15 respectively.

Hivolt 103 Custom ships an update every 56 months, jAmp IR every 2 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Hivolt 103 Custom | jAmp IR |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/hivolt-103-custom/id1606401558/reviews)** | [4.7 (15 ratings)](https://appshunter.io/ios/app/jamp-ir/id6476031801/reviews) |
| Number of ratings | 4 | **15** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 56 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 42 MB | 1 MB |
| Requires iOS | 15 | **14.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Nembrini Audio](https://appshunter.io/developer/1493296895) | [Jan Maes](https://appshunter.io/developer/1550506252) |

## What reviewers say

### Hivolt 103 Custom

[App page](https://appshunter.io/ios/app/hivolt-103-custom/id1606401558)

This app emulates a vintage guitar amplifier, offering two channels with shared EQ and interactive controls. It includes a full recording chain emulation and a custom noise gate. Works as a standalone app or an audio effect.

**Highlights:** Vintage Hiwatt DR103 emulation, Two channels with shared EQ, Normal and Brilliant inputs, Channel linking for blended sound, Recording chain emulation, Custom noise gate circuit

**Features:** Vision Pro support

**In-app purchases:** none


### 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 Hivolt 103 Custom free?

Hivolt 103 Custom costs $9.99, with no in-app purchases.

### Is jAmp IR free?

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

### Which has better reviews, Hivolt 103 Custom or jAmp IR?

Hivolt 103 Custom is rated higher. Hivolt 103 Custom averages 5.0 out of 5 from 4 ratings, while jAmp IR averages 4.7 from 15 ratings.

### Do Hivolt 103 Custom or jAmp IR have ads?

Neither Hivolt 103 Custom nor jAmp IR shows ads.

### Which is updated more often, Hivolt 103 Custom or jAmp IR?

Hivolt 103 Custom ships an update every 56 months, and jAmp IR every 2 weeks. Most recently, Hivolt 103 Custom was updated on November 7, 2026 and jAmp IR on November 4, 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.*