Comparison

Flasia HD vs Euler VS

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

Head to head
About

Flasia HD

This interactive visualizer creates beautiful, artistic displays inspired by natural phenomena like fireworks and fluid dynamics. It offers creative thinking tools and can serve as entertainment or interior decor for art enthusiasts.

Highlights
  • 5-finger multi-touch display
  • Customizable particle length, number, and size
  • Two play modes: gesture control and multi-touch drawing
  • Fluid effect with high FPS
  • Music options by Aden Ray
Features
Read full description

::: What is Flasia? ::: • Flasia is a highly complex, kinetic, and interactive visualizer yet it is also an amazingly beautiful work of art. • Flasia is designed to help people who want to think more creatively or who need a change of pace. • Flasia is an excellent game/toy/party entertainment/interior design element for anyone who loves fireworks, whirlwinds, firefly lights, aurora, rainbow, wave, fluid, Jackson Pollock painting ::: Features ::: • 5-Finger Multi-touch Display! • 5 Music choices by Aden Ray (On/Off available)! • Customize Particle Length, Number, & Size! • 2 Play Modes (Gesture Control and Multi-Touch Drawing)! • Awesome fluid effect with high FPS ::: Support ::: If you have any problems, questions, concerns, or ideas related to this app, please feel free to contact me. I would really like to hear what you think. sunglab@gmail.com www.facebook.com/sunglabcom www.twitter.com/sunglabcom www.sunglab.com

About

Euler VS

Explore a dynamic world of geometric art and visual synthesis with interactive touch controls. Design and play with harmonic motion and color systems, with options to expand your library through in-app purchases. Sync your creations from macOS for a seamless experience.

Highlights
  • Interactive geometric art
  • Harmonic motion exploration
  • Touch-driven visual synthesis
  • 24 professional presets
  • In-app preset packs
  • Tap Tempo feature
  • iCloud sync with macOS
Features
Read full description

Discover a living world of harmonic motion, geometric art, and interactive visual synthesis. Euler VS Player brings the expressive visuals of the macOS app to your iPhone and iPad in a streamlined, touch-driven experience built for exploration, performance, and play. Play Anywhere. Create on macOS. Euler VS Player includes 24 professionally crafted presets, each showcasing unique combinations of periodic functions, harmonic oscillators, geometric transformations, and color systems. Interact with any shape using simple touch gestures to explore animations in real time. Design your own presets using Euler Visual Synthesizer for macOS, organize them into banks, for synchronization with your iOS device through iCloud. Preset Packs and Performance Tools Expand your library with premium professionally designed preset banks available as in-app purchases. For performance and live play, you can tap along to music using the built-in Tap Tempo feature. Tempo-enabled presets will pulse and animate in time with your rhythm. A fully automatic mode is also included, allowing Euler VS Player to cycle through all presets in a bank hands-free. Important Note Euler VS Player is an interactive visual tool. It does not react to external audio input. Tempo-based modulation is controlled manually using Tap Tempo or through automatic playback options.

Screenshots

Flasia HD4 screens
Euler VS4 screens

Verdict

The call

The clearest difference is price: Euler VS at Free against Flasia HD's $3.99. Euler VS also leads on rating (5.0 vs 4.6). Flasia HD's advantage is in-app purchases (none vs 2) and chart position (#190 vs unranked). On review sentiment, ratings volume, update cadence and ads 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

Euler VS is free to download; Flasia HD costs $3.99 up front. Euler VS sells 2 one-off in-app purchases. Flasia HD asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Euler VS holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 11 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Flasia HD ships an update every 5 months, Euler VS every 8 months. The most recent releases landed on October 7, 2026 and September 23, 2026 respectively.

Scorecard5 real differences · 6 level
Flasia HD versus Euler VS: the parameters behind the verdict, then further details
ParameterFlasia HDEuler VS
Price$3.99Free — better
Rating4.6 (11 ratings)5.0 (5 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11 — better5
Update frequencyEvery 5 months — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#190 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple TV — better
Requires iOS15.615.2 — better
Further details — not scored
Size59 MB12 MB
Age rating4+4+
DeveloperSungLab IncAllOneWord Software LLC

Customer experience

Flasia HD

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Euler VS

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Flasia HD

No in-app purchases

2 purchases

Euler VS

One-time2
  • Townsend '94 Bank$0.99
  • King St. Garage$0.99

Questions

Is Flasia HD free?
Flasia HD costs $3.99, with no in-app purchases.
Is Euler VS free?
Euler VS is free to download, with in-app purchases available.
Which has better reviews, Flasia HD or Euler VS?
Euler VS is rated higher. Flasia HD averages 4.6 out of 5 from 11 ratings, while Euler VS averages 5.0 from 5 ratings.
Do Flasia HD or Euler VS have ads?
Neither Flasia HD nor Euler VS shows ads.
Which is updated more often, Flasia HD or Euler VS?
Flasia HD ships an update every 5 months, and Euler VS every 8 months. Most recently, Flasia HD was updated on October 7, 2026 and Euler VS on September 23, 2026.

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