Troublemaker

Troublemaker

Acid Bassline Synth

64 ratings
94 reviews
$8.99

Details

  • Released
  • Updated
  • January 9, 2017
  • January 18, 2026
Troublemaker screenshot #1 for iPhone
Troublemaker screenshot #2 for iPhone
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About

This app emulates the iconic TB-303 bassline synthesizer, offering its distinctive sound with a diode filter, sawtooth, and square wave oscillators. It provides extensive MIDI and sequencer features, allowing for creative sound design and integration with DAWs.

Diode filter emulation
Sawtooth and square wave oscillators
Realtime Mutation Probability Engine
Standalone sequencer (1-64 steps)
Audio Unit (AUv3) compatibility
MIDI CC controllers
MIDI Clock Sync
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What's New in Troublemaker

1.8.7

January 18, 2026

Fixed a small bug causing samplerate mismatch on a small number of devices in standalone mode.

User reviews

話にならない

音程が3音ほど低く出力されるようになっており、全く使い物にならなかった

Coole App!

Mit wirklich starkem 303 Sound und sehr leicht zu bedienendem innovativen Sequencer. (Wesentlich besser als beim 303 Original). Schade ist nur, dass man diesen Sequencer nur Standalone benutzen kann und zum Beispiel nicht innerhalb von AUM und zusammen unserem Drum Sequencer OCTACHRON, was ich natürlich gerne mache. Dazu braucht man dann noch die Rozeta Suite, was bei diesen sehr moderaten Preisen allerdings auch noch okay ist.
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Sequencer en modo AUv3?

No entiendo por qué solo esta disponible el secuenciador en modo standalone le resta versatilidad y su principal encanto

🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨

Can you Please add the dark gray theme.. it’s too bright

I love this but…

I absolutely LOVE this app.
It’s utterly brilliant.
But I cannot figure out how to use it as an auv3 in GarageBand or logic pro. It just doesn’t seem to to have the same functionality, and is a stripped down version with a piano keyboard rather than the grid based system in the standalone version.
So I have to export midi files from the standalone and import them from my files app into my DAW.
And then place them into a Troublemaker instrument opened in the DAW.
Maybe that was the dev’s intention. Either that or I’m missing something obvious.
Still, it works that way, and has been an amazing bass tool, but the extra steps seem a little tiresome some days.
But…. as I said, I do love the app.
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Developer apps

FAQ

What does the Troublemaker app do?

Troublemaker emulates the sound of the legendary TB-303 bassline synthesizer. It features a carefully crafted diode filter emulation, sawtooth and square wave oscillators, and a Realtime Mutation Probability Engine to help you create distinctive acid basslines and other unique synth sounds.

What are the key features of Troublemaker?

Key features include a diode filter emulation, sawtooth and square wave oscillators, a standalone sequencer supporting 1-64 steps, Audio Unit (AUv3) compatibility for use in DAWs, extensive MIDI support including CC controllers and clock sync, and the ability to export MID and WAV files.

How much does Troublemaker cost?

Based on the provided information, Troublemaker is a paid application. There are no mentions of in-app purchases or a subscription model, indicating a one-time purchase for the full app.

What devices is Troublemaker compatible with?

Troublemaker is compatible with iOS devices and supports Audio Unit (AUv3) integration, meaning it can be used within compatible Digital Audio Workstations (DAWs) on iOS. It also supports Core MIDI, Virtual MIDI, and Bluetooth MIDI input.

What are common use cases for Troublemaker?

Common use cases include creating classic acid basslines for electronic music genres, experimenting with unique synth textures, sequencing patterns for live performance or studio production, and integrating the synth sound into a larger DAW project via AUv3.