# ARPJAM vs Lo

The clearest difference is ads: ARPJAM at none against Lo's shown. ARPJAM also leads on update cadence (daily vs every 5 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. ARPJAM sells 1 one-off in-app purchase and Lo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ARPJAM ships an update daily, Lo every 5 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | ARPJAM | Lo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/arpjam/id6762045552/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 5 days |
| Monetization | Free | — |
| Size | 7 MB | 71 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takashi Tsunoda](https://appshunter.io/developer/1884742586) | [Toshihiko Arai](https://appshunter.io/developer/415194231) |

## 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 |


### Lo

[App page](https://appshunter.io/ios/app/lo-fi-zen/id6812143134)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $7.99 | one-time |


## Frequently asked questions

### Is ARPJAM free?

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

### Is Lo free?

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

### Do ARPJAM or Lo have ads?

Lo shows ads; ARPJAM does not.

### Which is updated more often, ARPJAM or Lo?

ARPJAM ships an update daily, and Lo every 5 days. Most recently, ARPJAM was updated on October 31, 2026 and Lo 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.*