Comparison

VOSC Visual Particle Synth vs Bloom.

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

Head to head
About

VOSC Visual Particle Synth

Create dynamic visual art by manipulating on-screen particles. Explore harmonic resonances and generate endless moving patterns and textures through oscillator control. Inspired by the principles of visual harmony and differential motion.

Highlights
  • Visual particle synthesis
  • Manipulate oscillator size, shape, frequency
  • Create moving patterns and textures
  • Explore visual harmony
  • Differential motion principles
  • Harmonic resonances
Features
Read full description

VOSC is best understood as a visual analogue of a traditional sound synthesizer. The medium of synthesis, rather than sound waves, is a vast quantity of on screen particles. By manipulating the size, shape, and frequency of the oscillators, an endless variety of moving patterns and textures can be created. A primary mechanism at work in VOSC is the phenomenon of visual harmony as explored by the computer graphics pioneer and visual artist John Whitney in the mid 20th century. The oscillators of VOSC operate in accordance with Whitney's principle of differential motion, giving rise to harmonic resonances as their frequencies move across whole ratios.

About

Bloom.

This app generates unique computational art where each pixel has a distinct color. Users can customize algorithms to influence the patterns and apply them as textures to various 3D shapes. It includes in-house music and options to save and reload custom creations.

Highlights
  • Self-generating, pseudo-random color patterns
  • Pixel-level unique RGB color generation
  • Apply images as textures on 3D shapes
  • In-house music for generative art sessions
  • Save and reload custom Bloom Documents
  • Variety of 3D shape geometries
Read full description

Bloom is an app that generates computational art, which means images are created by algorithms rather than by hand, but users can customize parameters to influence the results. In Bloom, textures can be generated so that every pixel has a unique color. Bloom is available for macOS and iOS, in a virtually identical experience. To give every pixel in an N×N grid its own unique RGB color, we need enough color variations. With M shades per color channel (red, green, blue), we get M³ total colors. So we choose M so that M³ matches the number of pixels, N²: N² = M³ This algorithm produces endlessly varied patterns that can be applied to a variety of 3D shapes. Feature overview: • Self-generating, pseudo-random process creates unique patterns of a rainbow of colors. • 1000x1000 dimension color profusions consisting of one million different colored pixels, with option of more or less. • Apply generated images, or any other image, as textures on 3D shapes - sphere, cube, heart and more. • Listen to our own in-house music as you watch and wait. Many 3D output options, including texture filters, shape rotation, material and lighting properties. A presets menu provides you with several sets of parameter values that you can start with and then tweak further. Use the Defaults menu item to reset all parameters to the state of Bloom on first launch. Options can be saved to and reloaded from Bloom Documents, using the Share menu. Bloom Documents are created using the Share menu item Save Bloom Sphere Document, and reloaded using the Share menu item Load Bloom Document. Bloom Documents support Quick Look Thumbnails. Quick Look thumbnails are small preview images that the operating system generates for files so you can see what’s inside without opening them. For example, when you browse your files in Finder, each Bloom Document or image may have a tiny preview showing the content or a miniature version of the 3D shape and texture. This makes it easier to identify files at a glance and quickly find what you’re looking for. Available shape geometries: sphere, torus, cube, cylinder, plane, capsule, pyramid, star, trefoil knot, exclamation heart and heart. A Music Manager enables listening to an assortment of music tracks while you wait and watch the art generate.

Screenshots

VOSC Visual Particle Synth4 screens
Bloom.4 screens

Verdict

The call

The clearest difference is price: Bloom. at Free against VOSC Visual Particle Synth's $4.99. Bloom. also leads on rating (5.0 vs 4.5) and update cadence (every 4 months vs every 38 months). VOSC Visual Particle Synth's advantage is ratings volume (27 vs 1) and chart position (#96 vs unranked). On ads, in-app purchases, monetization model 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

Bloom. is free to download; VOSC Visual Particle Synth costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Bloom. holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: VOSC Visual Particle Synth has 27 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

VOSC Visual Particle Synth ships an update every 38 months, Bloom. every 4 months. The most recent releases landed on October 1, 2026 and September 16, 2026 respectively.

Scorecard6 real differences · 5 level
VOSC Visual Particle Synth versus Bloom.: the parameters behind the verdict, then further details
ParameterVOSC Visual Particle SynthBloom.
Price$4.99Free — better
Rating4.5 (27 ratings)5.0 (1 ratings) — better
Positive reviews62.2% of reviews—
Number of ratings27 — better1
Update frequencyEvery 38 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#96 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better16.4
Further details — not scored
Size123 MB157 MB
Age rating4+4+
DeveloperDuncan HolbyLimit Point Software

Customer experience

VOSC Visual Particle Synth

All ratings27 ratings
Positive88.9%
Neutral7.4%
Negative3.7%
Written reviews37 reviews
Positive62.2%
Neutral16.2%
Negative21.6%

Bloom.

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

VOSC Visual Particle Synth

No in-app purchases

None

Bloom.

No in-app purchases

Questions

Is VOSC Visual Particle Synth free?
VOSC Visual Particle Synth costs $4.99, with no in-app purchases.
Is Bloom. free?
Bloom. is free to download, with no in-app purchases.
Which has better reviews, VOSC Visual Particle Synth or Bloom.?
Bloom. is rated higher. VOSC Visual Particle Synth averages 4.5 out of 5 from 27 ratings, while Bloom. averages 5.0 from 1 ratings.
Do VOSC Visual Particle Synth or Bloom. have ads?
Neither VOSC Visual Particle Synth nor Bloom. shows ads.
Which is updated more often, VOSC Visual Particle Synth or Bloom.?
VOSC Visual Particle Synth ships an update every 38 months, and Bloom. every 4 months. Most recently, VOSC Visual Particle Synth was updated on October 1, 2026 and Bloom. on September 16, 2026.

Other comparisons