Comparison

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

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

Head to head
About

Flowpaper

This digital sketchbook allows users to create dynamic still or animated drawings with physics-based brushes. It offers tools for fluid art generation, drawing on existing images, and precise color selection, suitable for both beginners and professionals.

Highlights
  • Create flowing still or animated drawings
  • Master generative, physics-based brushes
  • Design fluid artwork for backgrounds
  • Draw on photos and existing artwork
  • Precise color picker and palette builder
  • Export high-resolution sketches
Features
Read full description

Transform your ideas into mesmerizing art with Flowpaper, the unique digital sketchbook that brings your drawings to life. Experience the magic of fluid, physics-based brushes that respond naturally to your touch, enjoyed by both digital art beginners and professional artists alike. Key Features: • Create stunning still or animated drawings that flow and evolve • Master unique generative brushes that make digital sketching effortless • Design fluid artwork perfect for backgrounds and sharing • Draw on photos or other artwork • Draw using rotational symmetry • Pick the perfect color with our precise color picker and palette builder • Explore endless creative possibilities with physics-based tools like gossamer, silk-like webs • Export your sketches seamlessly in high-resolution to continue in other art apps Whether you’re looking to sketch a quick idea, create mesmerizing animations, or explore new forms of digital art, Flowpaper’s intuitive tools invite endless creative possibilities. Turn your device into an infinite canvas for your imagination. Perfect for: • Digital sketching and artwork creation • Relaxing artistic exploration • Animated drawing and design • Illustration projects • Creative fluid art generation Download Flowpaper today and discover a new dimension of digital art where your creativity flows freely. PRIVACY POLICY: Our privacy policy is available at: https://flowpaper.io/privacy-policy TERMS OF SERVICE: Apple’s Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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/

Screenshots

Flowpaper4 screens
C.L.U.S.T.E.R4 screens

Verdict

The call

The clearest difference is review sentiment: Flowpaper at 78% against C.L.U.S.T.E.R's 0%. Flowpaper also leads on price (Free vs $0.99) and rating (4.7 vs 3.3). C.L.U.S.T.E.R's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 17.0). On ads 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

Flowpaper is free to download; C.L.U.S.T.E.R costs $0.99 up front. Flowpaper sells 4 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

Flowpaper holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: Flowpaper has 326 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 78% of Flowpaper's written reviews are positive against 0% of C.L.U.S.T.E.R's.

UpkeepUpdate frequency

Flowpaper ships an update every 8 days, C.L.U.S.T.E.R every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard8 real differences · 2 level
Flowpaper versus C.L.U.S.T.E.R: the parameters behind the verdict, then further details
ParameterFlowpaperC.L.U.S.T.E.R
PriceFree — better$0.99
Rating4.7 (326 ratings) — better3.3 (4 ratings)
Positive reviews77.5% of reviews — better0.0% of reviews
Number of ratings326 — better4
Update frequencyEvery 8 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size68 MB40 MB
Age rating4+4+
DeveloperBotto Studio LLCIvan Horobets

Customer experience

Flowpaper

All ratings326 ratings
Positive91.7%
Neutral5.2%
Negative3.1%
Written reviews347 reviews
Positive77.5%
Neutral9.8%
Negative12.7%

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%

Bugs and requests

Flowpaper

Reported bugs

4 issues
  • Saving high-quality images causes crashes
  • Settings menu not functioning properly
  • Incompatibility issues with newer iPads
  • Drawing controls not responsive at times

Requested features

5 requests
  • Add undo/redo functionality
  • Implement a color picker and custom brush options
  • Allow importing of background images
  • Optimize for latest iOS devices and screen sizes
  • Provide more brush styles and drawing tools

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

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Flowpaper

Subscriptions3
  • Flowpaper Plus Weekly$1.997 Days
  • Flowpaper Plus Monthly$3.991 Month
  • Flowpaper Plus Annual$5.991 Year
One-time1
  • Flowpaper Plus Lifetime$7.99
None

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

No in-app purchases

Questions

Is Flowpaper free?
Flowpaper is free to download, with in-app purchases available.
Is C.L.U.S.T.E.R free?
C.L.U.S.T.E.R costs $0.99, with no in-app purchases.
Which has better reviews, Flowpaper or C.L.U.S.T.E.R?
Flowpaper is rated higher. Flowpaper averages 4.7 out of 5 from 326 ratings, while C.L.U.S.T.E.R averages 3.3 from 4 ratings.
Do Flowpaper or C.L.U.S.T.E.R have ads?
Neither Flowpaper nor C.L.U.S.T.E.R shows ads.
Which is updated more often, Flowpaper or C.L.U.S.T.E.R?
Flowpaper ships an update every 8 days, and C.L.U.S.T.E.R every 3 weeks. Most recently, Flowpaper was updated on November 1, 2026 and C.L.U.S.T.E.R on November 3, 2026.

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