Comparison

Magic Fluid Sand vs Polyrhythm

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

Head to head
About

Magic Fluid Sand

Experience a unique blend of classic Tetris and 2048 gameplay with relaxing fluid sand simulations. Enjoy synthesized music and inspiring quotes for a calming and visually engaging experience.

Highlights
  • Fluid sand simulation
  • Classic Tetris gameplay
  • 2048 puzzle game
  • Synthesized background music
  • Inspiring life quotes
  • Interactive sand control
Features
Read full description

Natural rhythms soothe your mind. Enjoy stunning fluid sand effects with ever-changing visuals for total relaxation. Play classic puzzle games: 2048, Block Puzzle, Minesweeper, Snake and Number Sliding Puzzle. Random notes create unique melodies every time. Enjoy relaxing pure music, natural sounds and classical piano pieces. Toggle background music freely, tap and control flowing sand particles. Vivid visuals inspire your thoughts. Read wise quotes in your spare time and gain insights into life while having fun.

About

Polyrhythm

Create a personalized soundscape for relaxation, sleep, or meditation. Explore a variety of organic and synthesized instruments, ambient background sounds, and AI-generated presets. Customize and save your favorite sound combinations for a tranquil experience.

Highlights
  • Variety of sound presets
  • Organic and synthesized instruments
  • Background ambient sounds
  • AI preset generator
  • Advanced preset customization
  • Create and save custom presets
Features
Read full description

When it's time for rest and relaxation, our app will become your faithful companion. Perfect for use before sleep or during meditation, it can also help soothe your child or yourself. Based on polyrhythmic sound playback, our app promises a deep immersion into the world of sounds and visualizations. Features of our app: - A variety of presets with unique moods; - Various organic and synthesized musical instruments to create the perfect atmosphere; - Background sounds including white noise, bird songs, and ocean waves; - AI preset generator for a continuous flow of inspiration; - Advanced preset customization for precise sound tuning; - Ability to create custom presets and save them to favorites. Discover the world of harmony and tranquility with our unique app - your personal oasis of calm. Also worth reading Privacy Policy: https://sites.google.com/view/castles-trip-privacy-policy. And Terms of use: https://sites.google.com/view/polyrhythm-tos

Screenshots

Magic Fluid Sand4 screens
Polyrhythm4 screens

Verdict

The call

The clearest difference is rating: Polyrhythm at 2.1 against Magic Fluid Sand's 1.0. Polyrhythm also leads on ads (none vs shown) and review sentiment (25% vs 0%). Magic Fluid Sand's advantage is in-app purchases (none vs 3). On price, update cadence, device support and iOS requirement 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

Both are free to download. Polyrhythm sells 3 in-app purchases, starting at $1.99 per 7 days. Magic Fluid Sand asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Polyrhythm holds the better App Store score, 2.1 against 1.0. That said, the two scores are not equally well evidenced: Polyrhythm has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Magic Fluid Sand's written reviews are positive against 25% of Polyrhythm's.

UpkeepUpdate frequency

Magic Fluid Sand ships an update monthly, Polyrhythm every 5 weeks. Both last shipped on November 3, 2026.

Scorecard6 real differences · 4 level
Magic Fluid Sand versus Polyrhythm: the parameters behind the verdict, then further details
ParameterMagic Fluid SandPolyrhythm
PriceFreeFree
Rating1.0 (1 ratings)2.1 (9 ratings) — better
Positive reviews0.0% of reviews25.0% of reviews — better
Number of ratings19 — better
Update frequencyMonthly — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1212.0
Further details — not scored
Size28 MB131 MB
Age rating4+4+
Developer立辉 韩Stanislav Duplinskiy

Customer experience

Magic Fluid Sand

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

Polyrhythm

All ratings7 ratings
Positive28.6%
Neutral14.3%
Negative57.1%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

In-app purchases

None

Magic Fluid Sand

No in-app purchases

3 purchases

Polyrhythm

Subscriptions3
  • Full access to app functions$1.997 Days
  • Full access to app functions$5.991 Month
  • Full access to app functions3 Days trial$12.993 Months

Questions

Is Magic Fluid Sand free?
Magic Fluid Sand is free to download, with no in-app purchases.
Is Polyrhythm free?
Polyrhythm is free to download, with in-app purchases available.
Which has better reviews, Magic Fluid Sand or Polyrhythm?
Polyrhythm is rated higher. Magic Fluid Sand averages 1.0 out of 5 from 1 ratings, while Polyrhythm averages 2.1 from 9 ratings.
Do Magic Fluid Sand or Polyrhythm have ads?
Magic Fluid Sand shows ads; Polyrhythm does not.
Which is updated more often, Magic Fluid Sand or Polyrhythm?
Magic Fluid Sand ships an update monthly, and Polyrhythm every 5 weeks. Most recently, Magic Fluid Sand was updated on November 3, 2026 and Polyrhythm on November 3, 2026.

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