1. Home
  2. 🎵 Music
  3. ARPJAM
ARPJAM

ARPJAM

Generative Arpeggio Synth

1 ratings
3 reviews
🌟 Lifestyle
🎵 Music
Free
In-App Purchases

Details

  • Released
  • Updated
  • April 14, 2026
  • September 10, 2026

Features

Developer

Takashi Tsunoda
✨Promote your app ✨
ARPJAM screenshot #1 for iPhone
ARPJAM screenshot #2 for iPhone
ARPJAM screenshot #3 for iPhone
ARPJAM screenshot #4 for iPhone
ARPJAM screenshot #5 for iPhone
ARPJAM screenshot #6 for iPhone
ARPJAM screenshot #7 for iPhone
ARPJAM screenshot #8 for iPhone
iphone
ipad
🧾$0.99
In-App Purchase↘︎
⭐3
Reviews↘︎
🔄6+ apps
Alternatives↘︎
❓8 answered
FAQ↘︎
📦~ in 1 day
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

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.

✓Dual arpeggio engines
✓Generative drum machine
✓Sound design controls
✓External instrument sync (Ableton Link, MIDI Clock)
✓Save and recall presets
✓Built-in timer
Show original description

What's New in ARPJAM

1.5.3

September 10, 2026

"Restore Purchase" now tells you the result when you tap it. Added a contact address on the start screen.

1

Subscriptions & In-App Purchases

$0.99

Remove Ads

Remove all banner ads permanently

User reviews

Most RecentHighest RatedLowest Rated

Paying to remove the ads… doesn’t remove the ads

Sort of annoying, as the app itself is interesting. Tried on 2 different models of iPad running latest build. No dice.
SvetlovskaSvetlovska

Response from developer

I'm sorry. You paid to remove the ads and they stayed — that was our bug, not anything you did. We were checking the purchase the wrong way, so the app never saw that you had paid. It is fixed in 1.5.3, the version on the Store now. Please update, then tap "Restore Purchase" on the start screen. There is nothing more to pay. You should see "Your purchase has been restored", and the ads will go. If anything is still wrong, write to office@twelvetone.jp and we will fix it.

remove ads

課金しましたけど、広告が外れません。
koh jikoh ji

Response from developer

お支払いいただいたのに広告が消えないままにしてしまい、申し訳ありませんでした。 原因はこちらの不具合です。購入の確認に誤った方法を使っていたため、 お支払いがアプリに伝わっていませんでした。公開中の 1.5.3 で修正しております。 お手数ですが、アプリを最新版に更新したうえで、起動画面の 「Restore Purchase」を押してみてください。追加のお支払いは不要です。 「Your purchase has been restored」と出れば広告が消えます。 それでも消えないときは office@twelvetone.jp までご連絡ください。必ず対応します。

もう1人じゃない！

バッキングトラックを自身で調整できて、セッションの練習から作曲、ライブまでと、幅広く活用できそうで素晴らしいアプリです！！
RingoApple14RingoApple14

Response from developer

ありがとうございます。「もう1人じゃない」というコメント、めちゃくちゃ嬉しいです。 日々進化させていっていますので、ぜひ楽しんで使ってください。

Developer apps

YOKA INSTRUMENTS
YOKA INSTRUMENTS

by Takashi Tsunoda

🎵 Music

(6)

Free
TYPORAIT
TYPORAIT

Words to Portrait

📷 Photo & Video
Free
With Ads
ASTROTIMER
ASTROTIMER

by Takashi Tsunoda

🔧 Utilities
Free
In-App PurchasesWith Ads
七輪レシピ++
七輪レシピ++

by Takashi Tsunoda

🍔 Food & Drink
Free
ARPJAM Studio
ARPJAM Studio

AUv3 generative synth, sampler

🎵 Music

(4)

$7.99
See developer apps

FAQ

What is ARPJAM?

ARPJAM is a free music application that generates evolving ambient music through two independent arpeggio engines. It includes a generative drum machine, sound design capabilities, and synchronization features.

Does ARPJAM have ads?

No, ARPJAM does not contain advertisements. It is a free application that offers its full functionality without interruptions from ads.

Can ARPJAM sync with other music apps?

Yes, ARPJAM supports Ableton Link for wireless synchronization of tempo and bar phase with other Link-enabled instruments. It also supports USB-C MIDI Clock reception for external synchronization.

How many presets can ARPJAM save?

ARPJAM allows you to save four start presets, including a default and three user-savable slots. These presets can be exported and imported as .arpjam files for sharing.

What sound design options are available in ARPJAM?

ARPJAM offers four waveforms (sine, triangle, sawtooth, square) and allows adjustments to the low-pass filter, attack, and overdrive per engine. It also includes ping-pong delay and reverb effects.

What is the age rating for ARPJAM?

ARPJAM has an age rating of 4+. This indicates it is suitable for children and does not contain content typically deemed inappropriate for younger audiences.

How often is ARPJAM updated?

The latest version of ARPJAM is 1.5.3, released on 2026-09-10. Updates are released periodically to introduce new features and improvements.

What devices does ARPJAM support?

ARPJAM is supported on iPhone, iPad, and iPod devices. It is designed to function across a range of Apple mobile platforms.