# ARPJAM vs Synth Box

ARPJAM and Synth Box both sit at 5.0 stars, but that hides the real split: 100% of Synth Box's written reviews are positive against 33% of ARPJAM's. ARPJAM's advantage is update cadence (daily vs every 2 months) and monetization model (free vs freemium). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ARPJAM sells 1 one-off in-app purchase and Synth Box sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for ARPJAM against 5.0 for Synth Box. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 33% of ARPJAM's written reviews are positive against 100% of Synth Box's.

ARPJAM ships an update daily, Synth Box every 2 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | ARPJAM | Synth Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/arpjam/id6762045552/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/synth-box-music-synthesizer/id6777200381/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 months |
| Monetization | **Free** | Freemium |
| Size | 7 MB | 13 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Takashi Tsunoda](https://appshunter.io/developer/1884742586) | [Alper Kahriman](https://appshunter.io/developer/1054578352) |

## What reviewers say

### ARPJAM

[App page](https://appshunter.io/ios/app/arpjam/id6762045552)

This app generates evolving ambient music using two independent arpeggio engines. It features a generative drum machine, sound design tools, and external instrument synchronization. Save and recall your favorite musical setups.

**Highlights:** Dual arpeggio engines, Generative drum machine, Sound design controls, External instrument sync (Ableton Link, MIDI Clock), Save and recall presets, Built-in timer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Synth Box

[App page](https://appshunter.io/ios/app/synth-box-music-synthesizer/id6777200381)

Transform your device into a versatile synthesizer with a touch-sensitive keyboard, morphing oscillators, and a resonant low-pass filter. Explore 100 presets, add real-time effects, and record your performances. Connect MIDI controllers for expanded creative possibilities.

**Highlights:** Slide-to-play keyboard with pitch/mod wheels, Dual morphing wavetable oscillators, Moog-style low-pass filter, 100 hand-crafted presets, Real-time effects (reverb, delay, bit-crusher), Record and share performances, MIDI controller support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $19.99 | per year |
| Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is ARPJAM free?

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

### Is Synth Box free?

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

### Which has better reviews, ARPJAM or Synth Box?

ARPJAM and Synth Box are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ARPJAM or Synth Box have ads?

Neither ARPJAM nor Synth Box shows ads.

### Which is updated more often, ARPJAM or Synth Box?

ARPJAM ships an update daily, and Synth Box every 2 months. Most recently, ARPJAM was updated on October 31, 2026 and Synth Box on October 31, 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.*