Troublemaker vs Bacteria Music
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Troublemaker
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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Featured in the US Appstore! Here's what the reviews say: "Perfect for on the move acid sessions, the Trouble Maker app faithfully recreates the sound of the original TB-303" - DJ Mag "Troublemaker is absolutely no trouble at all to heartily recommend" - SoundOnSound "If you want to make the bassline from Josh Wink’s ‘Higher State of Consciousness’ on the bus, this is the app for the job" - Factmag.com "Top-notch stuff from a developer that just keeps getting better" - Musicappblog.com "This app has been consuming all of my time this week! Love it!" - Discchord.com Introducing Troublemaker: this is not a 303 The legendary TB-303 has magical properties; it is filled to the brim with analog shimmer. Its output jack is a gateway to a parallel universe and when you twiddle the filter knobs an army of highly trained pixies chisel the square waves from freshly harvested unicorn souls. So if you want a TB-303, you should buy a TB-303. But if you're after *that sound* Troublemaker will give you everything you need in spades. Troublemaker sports a carefully crafted diode filter emulation and among the available oscillators are the typical raspy, nasal sawtooth and rubbery square wave with its oddball shape and shifting pulse width. It also has the wow. Troublemaker is fully Audio Unit (AUv3) compatible, so you can go wild running multiple instances in your favorite DAWs. It also has: - MIDI CC controllers for all knobs (predefined), - Core Midi, Virtual Midi, Bluetooth Midi input, - MIDI Clock Sync, MIDI Start / Stop support - Realtime Mutation Probability Engine - Standalone sequencer supports 1-64 steps - Audiobus 3 support (audio + MIDI) - Exports MID and WAV files from the standalone sequencer - User manual and MIDI charts on ruismaker.com - Comes with an extra AUv3 plugin version of a modded Troublemaker unit And unlike the TB-303, it can actually sound like a bass guitar ;-)
Bacteria Music
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Make gross, gooey, squelchy music! Bacteria Music is a simple, playful beat maker. Tap the glowing bacteria to build a loop, twist the knobs to make it wetter and grosser, and mash Change Bass and Change Beats to discover new sounds with different drum kits and endless squelchy basslines. When you make something you love, share a clip with a friend in a tap. - Tap-to-play grid with fun ripples and haptics - Wobbly, farty acid-style bass - 12 drum kits, from boomy to bright to lo-fi - Change the bass and the beat independently - Share your creations - No accounts, no ads, nothing saved or collected...just play! Perfect for kids and the young at heart. Made by Soundtron Studios.
Screenshots
Verdict
The clearest difference is price: Bacteria Music at Free against Troublemaker's $8.99. Bacteria Music also leads on update cadence (every 2 days vs every 2 weeks). Troublemaker's advantage is iOS requirement (12.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Bacteria Music is free to download; Troublemaker costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Troublemaker ships an update every 2 weeks, Bacteria Music every 2 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.
| Parameter | Troublemaker | Bacteria Music |
|---|---|---|
| Price | $8.99 | Free — better |
| Rating | 4.6 (64 ratings) — better | — |
| Positive reviews | 77.9% of reviews | — |
| Number of ratings | 64 — better | — |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Bram Bos | Soundtron Studios LLC |
In-app purchases
Troublemaker
No in-app purchases
Bacteria Music
No in-app purchases









