Comparison

C.L.U.S.T.E.R vs Fluid Simulation

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

Head to head
About

C.L.U.S.T.E.R

Create unique geometric designs and patterns using intuitive drawing tools. Explore shapes, colors, and symmetry to unleash your imagination and develop spatial thinking. Offers a spatial canvas with multi-level grids for endless creative possibilities.

Highlights
  • Geometric shape drawing
  • Color and shade customization
  • Symmetrical pattern creation
  • Multi-level 2n grid canvas
  • Zoom, pan, and rotate navigation
  • Vector graphics
Read full description

We invite you to explore geometric space, providing you with the tools to create and discover wonderful designs, where every shape and color intertwine into the mosaic of your imagination. Draw and combine triangles with simple finger movements. Choose shapes from angular to circular. Play with colors and shades to create unique designs, from isometric structures to colorful or monochromatic drawing. Mirrors allow you to create symmetrical patterns and designs, making the process even more interesting and creative. Multi-level 2n grid transforms your screen into a spatial canvas. You can easily zoom, move, and rotate it using two fingers for navigation. The triangular grid is built on powers of two and consists of 8 layers, where each larger layer is behind the previous one.This opens up infinite possibilities for your creativity. With Cluster 2n, you can explore geometry, create unique designs, logos, patterns, fractals, optical illusions and abstract illustrations, or simply relax by drawing. Using the app from an early age helps develop spatial thinking. Each new session begins with clear space, providing endless opportunities for your experiments. Enjoy the harmony of shapes and colors with excellent vector graphics on your screen. Tip: Hold down a number to view the help. We always welcome your feedback and ideas. Your support will help us improve C.L.U.S.T.E.R For more information, please visit our website https://www.cluster2n.com/

About

Fluid Simulation

Read full description

Art you can touch. LIQUIDTOUCH is an art app for iPhone and iPad that lets you explore light, liquids, metal and geometry through taps and drags. Tap to send ripples across the screen. Drag to change what you see. When you want to move your fingers without thinking or take a break, enjoy a little time with art at your own pace. • Find your favorite among 45 artworks Ripples of light, the clarity of glass, undulating metal, color set loose in water, scenery rushing past. Five styles, each with a feel of its own. • Tap, drag and hold Art responds to where and how you touch. Hold to speed up the motion and repeat effects in supported artworks. Feel haptic feedback on supported devices. • Save and share the motion Record a 3-second Live Photo, a 4K image or a video of up to 60 seconds while interacting with an artwork. Save it to Photos or send it through the system share sheet. Videos are saved in portrait Full HD. On compatible iPhones, Live Photos can be set as Lock Screen wallpapers through iOS. Playback depends on the device, iOS version and photo eligibility. This is not a continuously animated Home Screen wallpaper feature. • Listen Mode responds to sound Turn on Listen Mode to make art respond to sounds around you. The microphone is used when you enable this feature. Microphone audio is not recorded in exported videos. • Enjoy a bigger canvas Enjoy LIQUIDTOUCH on iPad, or display art on a larger screen when connected to a compatible external display. • Try every artwork first The first-launch guide lets you touch every artwork before you choose a plan. Access to the artworks is offered with a weekly or yearly auto-renewing subscription. The yearly plan includes a free trial for eligible new subscribers. See the purchase screen for prices and available offers. Weekly and yearly plans renew automatically unless canceled at least 24 hours before the current period ends. Payment is charged to your Apple Account. Manage or cancel subscriptions in your Apple Account subscription settings. Restore previous purchases using Restore Purchases in the app. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

C.L.U.S.T.E.R4 screens
Fluid Simulation4 screens

Verdict

The call

The clearest difference is price: Fluid Simulation at Free against C.L.U.S.T.E.R's $0.99. Fluid Simulation also leads on update cadence (every 3 days vs every 3 weeks). C.L.U.S.T.E.R's advantage is rating (3.3 vs 1.0) and in-app purchases (none vs 5). On review sentiment 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

Fluid Simulation is free to download; C.L.U.S.T.E.R costs $0.99 up front. Fluid Simulation sells 5 in-app purchases, starting at $1.99 per 7 days. C.L.U.S.T.E.R asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

C.L.U.S.T.E.R holds the better App Store score, 3.3 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

C.L.U.S.T.E.R ships an update every 3 weeks, Fluid Simulation every 3 days. The most recent releases landed on November 12, 2026 and November 11, 2026 respectively.

Scorecard7 real differences · 3 level
C.L.U.S.T.E.R versus Fluid Simulation: the parameters behind the verdict, then further details
ParameterC.L.U.S.T.E.RFluid Simulation
Price$0.99Free — better
Rating3.3 (4 ratings) — better1.0 (1 ratings)
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings4 — better1
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size40 MB13 MB
Age rating4+4+
DeveloperIvan HorobetsAppnics, LLC

Customer experience

C.L.U.S.T.E.R

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Fluid Simulation

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

C.L.U.S.T.E.R

No in-app purchases

5 purchases

Fluid Simulation

Subscriptions3
  • LIQUIDTOUCH Weekly$1.997 Days
  • LIQUIDTOUCH Monthly$1.991 Month
  • LIQUIDTOUCH Yearly3 Days trial$14.991 Year
One-time2
  • LIQUIDTOUCH Lifetime$19.99
  • LIQUIDTOUCH Lifetime$29.99

Questions

Is C.L.U.S.T.E.R free?
C.L.U.S.T.E.R costs $0.99, with no in-app purchases.
Is Fluid Simulation free?
Fluid Simulation is free to download, with in-app purchases available.
Which has better reviews, C.L.U.S.T.E.R or Fluid Simulation?
C.L.U.S.T.E.R is rated higher. C.L.U.S.T.E.R averages 3.3 out of 5 from 4 ratings, while Fluid Simulation averages 1.0 from 1 ratings.
Do C.L.U.S.T.E.R or Fluid Simulation have ads?
Fluid Simulation shows ads; C.L.U.S.T.E.R does not.
Which is updated more often, C.L.U.S.T.E.R or Fluid Simulation?
C.L.U.S.T.E.R ships an update every 3 weeks, and Fluid Simulation every 3 days. Most recently, C.L.U.S.T.E.R was updated on November 12, 2026 and Fluid Simulation on November 11, 2026.

Other comparisons