# TD3 Studio — Acid bassline patterns

> MIDI to Behringer TD-3/TD-3-MO pattern converter with simulator. (iPhone/iPad app by Johan Nieuwhoff.)

- Source: https://appshunter.io/ios/app/td3-studio/id6811815519 (this page in markdown: same URL + `.md`)
- Developer: [Johan Nieuwhoff](https://appshunter.io/developer/6811815522)
- Category: Music
- Price: $22.99
- Age rating: 4+
- Requires: iOS 17.0 · 13 MB
- Languages: American English
- Released: 2026-09-22
- Data updated: 2026-10-11
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/td3-studio/id6811815519/reviews.md

## What is TD3 Studio?

TD3 Studio turns a MIDI file into a pattern for the Behringer TD-3 or TD-3-MO: drop a file in and the sixteen steps are cut for you, ready to edit, play and send to the device. Build a pattern from nothing too, step by step, from the on-screen keys or a MIDI keyboard plugged into your iPad or iPhone, with accents, slides, ties and rests one touch away.

No TD-3 within reach? The app plays through a built-in simulator on the device's own speakers, a 303 voice of its own, so every pattern can be built and heard before the hardware ever comes out. Patterns and edits sound the same either way.

One purchase covers iPhone, iPad and Mac: buy TD3 Studio once and it is yours on all three.

The library lives in the Files app, under "TD3 Studio": your own patterns, the 107 TB-303 patterns from the bundled Acid-Tabs collection, and search across free online MIDI archives, all from the one panel. Open a MIDI file from Files, and it goes straight through the converter, with a timeline for picking which sixteen steps become the pattern.

On iPad the whole instrument is one landscape plate: the step grid, the tone knobs, the transport and the library side by side. Below the grid sits an on-screen keyboard of one to three octaves, with accent and slide toggles and Tie and Rest buttons. Play it to edit the selected step, or press Record for 303-style step entry, one key filling one step, straight into the sequencer.

On iPhone the same tools are arranged across three screens: PATTERN for the step grid and keyboard, SOUND for the simulator's tone, and DEVICE for USB or Bluetooth output and the TD-3's read and write slots. A fixed header carries file and library access and the three tabs, and a fixed transport strip below carries start, stop, tempo and the step count, so both stay in view while the middle changes. A key, Tie or Rest enters the selected step and moves to the next one, so a full pattern is sixteen taps.

TD3 Studio needs a TD-3 or TD-3-MO to write or hear patterns on real hardware. On a USB-C iPad or iPhone, use Apple's USB-C to USB Adapter with the TD-3's own USB cable, or a USB-C to USB-B data cable that follows the USB-C standard (a branded USB-C printer cable; cheap ones lack the resistor that makes the phone the host and then work on a PC but not on a phone). A Lightning iPad needs an MFi Lightning to USB-B MIDI cable or Apple's Lightning to USB Camera Adapter. A Bluetooth MIDI adapter on the TD-3's MIDI IN works too. The TD-3 runs on its own power. Without the hardware, the simulator carries the whole app.

TD-3 and TD-3-MO are trademarks of Music Tribe. TD3 Studio is an independent app, not affiliated with or endorsed by Music Tribe or Behringer.

## Key features

- MIDI file to pattern conversion
- Step-by-step pattern building
- On-screen keyboard and MIDI input
- Built-in TD-3 simulator
- Accents, slides, ties, and rests editing
- Library management via Files app
- Cross-platform compatibility (iPhone, iPad, Mac)

## Is TD3 Studio safe?

Not enough ratings yet to assess TD3 Studio.

## Is TD3 Studio legit?

TD3 Studio has limited verification signals. The AppsHunter Legitimacy Score for TD3 Studio is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/td3-studio/id6811815519/reviews.md

### 5/5 — So Much easier than the original programming

*2026-09-29*

Being able to simply tap in a pattern and send it to my td-3-mo makes this worth every penny... added bonus is writing acid lines on your phone while out and about.. save it and send to your td3 when you get home

## Frequently asked questions about TD3 Studio

### Does TD3 Studio have ads?

No, TD3 Studio does not contain advertisements. It is a paid application that offers a complete experience without interruptions.

### What devices does TD3 Studio support?

TD3 Studio is available for Mac, iPhone, and iPad, providing a unified purchase for all your devices.

### How often is TD3 Studio updated?

The app was last updated on September 28, 2026, indicating a recent update. Users can expect ongoing support and potential new features.

### What is the age rating for TD3 Studio?

TD3 Studio has an age rating of 4+, making it suitable for a wide range of users interested in music creation.

### Can I use TD3 Studio without a Behringer TD-3?

Yes, TD3 Studio includes a built-in simulator that allows you to build and hear patterns even without the physical hardware.

### How does TD3 Studio handle MIDI files?

You can open MIDI files directly from the Files app, and TD3 Studio will convert them into a sixteen-step pattern for editing and playback.

### What are the connectivity options for TD3 Studio with hardware?

TD3 Studio supports USB-C to USB-B cables, MFi Lightning to USB-B MIDI cables, or Bluetooth MIDI adapters to connect with your TD-3 or TD-3-MO.

### What is the price of TD3 Studio?

TD3 Studio is available for a one-time purchase of $22.99, which covers usage on iPhone, iPad, and Mac.

## Version history (last 3 releases)

### 1.4.2 — 2026-09-28

On iPhone, OCT − and OCT + now move the selected note an octave down or up, within the TD-3's range, and play it so you hear the change straight away.

TD3 Studio is now on the Mac too: one purchase covers iPhone, iPad and Mac.

### 1.4.1 — 2026-09-24

- The simulator sounds closer to a real TD-3: its voice was measured against one, and TUNING now spans the same range as the TD-3's knob.
- The screen stays awake while TD3 Studio is in front, so a playing pattern no longer stops when the phone locks.

### 1.4.0 — 2026-09-22

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-11.*