Comparison

Bacteria Music vs ABDCTN

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Bacteria Music

Features
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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.

About

ABDCTN

This app generates classic sci-fi synthesizer sounds live from oscillators, filters, and envelopes. Interact with a visual farm interface where elements control sound parameters. Create unique sounds by bending, stretching, and rebuilding them.

Highlights
  • Live sound generation
  • Visual instrument interface
  • Interactive sound manipulation
  • Customizable oscillators and filters
  • Automated sound sequencing
  • AUv3 instrument support
Features
Read full description

Every science-fiction film had a sound department, and somewhere in it stood a synthesizer. ABDCTN is that synthesizer, rebuilt for your phone and your iPad: not a collection of recordings of those sounds, but the machine that makes them. Theremins, saucers, tractor beams, alarms, talking computers, and everything in between, generated live from oscillators, filters and envelopes. Each sound is a starting point, yours to bend, stretch and rebuild until it is one nobody has heard before. THE PICTURE IS THE INSTRUMENT There are no knobs, no sliders, no menus. The whole screen is a farm at night, and everything on it is a control. The fence is the keyboard: planks are white keys, flower pots are black keys. The alien on the left is the envelope: pull its body for attack, stretch its neck for decay, lift and reach its hands for sustain and release. The alien on the right is the filter. Lift the cow's tail to detune, lift the whole cow into the beam and the reverb grows. Slide the barn door for volume. Raise the chimney for drive. Tap the hayloft window to crush the bits. The clouds are the LFO: how much, how fast, what shape. Drag the saucer higher and the echo follows. Tap a light on the saucer to choose a sound, tap the moon to change the bank. THE RAY GUN A ray gun hangs next to the moon, and it makes the farm play itself. Tap the gun to choose the ray's speed. Light blue sweeps every second, cyan every three seconds and pink every ten. Tap once more for static, which erases. Hold the gun and it comes off its hook. Point its tip at anything on the farm, and whatever lights up yellow can be hit: an alien's legs, neck or either hand, the cow or her tail, the saucer's dome, the barn door, the chimney, the hayloft window or a cloud. Let go and that part turns the ray's colour. It then sweeps from one end of its range to the other on its own, in time with the sound. The filter opens and closes, the cow floats up into the reverb and sinks back, the window flickers the crusher on and off, and the third cloud steps through the LFO shapes. Shoot as many parts as you like, each at its own speed. Touch a swept part and it holds still under your finger. Shoot a part with static to stop its ray, or double-tap the gun to clear every ray on the sound. Rays are saved with each sound and in your presets. In a host, every ray is an automatable parameter. Every edit is remembered per sound. Hold a light to take a sound back to the factory. A REAL SYNTHESIZER Two oscillators with band-limited saw and pulse, an endless Shepard stack for lifts that never stop rising, noise and ring modulation. A state-variable filter that sweeps from low-pass through band-pass to high-pass, with envelope, key tracking and LFO. Real stereo: the oscillators spread across the field, voices sit where their keys are, a ping-pong tape echo bounces between the speakers, a spring-like reverb on each side. IN THE STUDIO Works as an AUv3 instrument in AUM, Drambo, Logic Pro, GarageBand and other hosts, with the same picture inside the host and every control exposed as an automatable parameter. MIDI 2.0 with full MPE: per-note pitch bend, pressure and timbre, so expressive controllers play it the way they were meant to. A hold latch keeps chords sounding with no fingers on the screen, and the instrument keeps playing in the background from a MIDI keyboard. Save and load your own presets from the transmission log. Pay once, own it. No subscription, no ads, no account, no tracking, nothing leaves your device. Somewhere a cow is rising slowly into the light. She sounds wonderful.

Screenshots

Bacteria Music3 screens
ABDCTN1 screens

Verdict

The call

The clearest difference is price: Bacteria Music at Free against ABDCTN's $4.99. On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Bacteria Music is free to download; ABDCTN costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Bacteria Music ships an update every 2 days, ABDCTN daily. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

Scorecard1 real difference · 9 level
Bacteria Music versus ABDCTN: the parameters behind the verdict, then further details
ParameterBacteria MusicABDCTN
PriceFree — better$4.99
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 2 daysDaily — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size3 MB2 MB
Age rating4+9+
DeveloperSoundtron Studios LLCLASZLO DOBROVOLSZKI

In-app purchases

None

Bacteria Music

No in-app purchases

None

ABDCTN

No in-app purchases

Questions

Is Bacteria Music free?
Bacteria Music is free to download, with no in-app purchases.
Is ABDCTN free?
ABDCTN costs $4.99, with no in-app purchases.
Do Bacteria Music or ABDCTN have ads?
Neither Bacteria Music nor ABDCTN shows ads.
Which is updated more often, Bacteria Music or ABDCTN?
Bacteria Music ships an update every 2 days, and ABDCTN daily. Most recently, Bacteria Music was updated on November 5, 2026 and ABDCTN on November 10, 2026.

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