Comparison

Zen Stack Masters vs Relax Coloring

Price, ratings, monetisation and update history for both games, side by side โ€” with what reviewers say about each.

Head to head
About

Zen Stack Masters

Features
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Find your center and your balance in Zen Stack Masters, the ultimate physics-based tower builder designed for relaxation, focus, and satisfying gameplay. Whether you have two minutes or two hours, step into a world where tactile blocks, realistic gravity, and ASMR audio combine to create a digital sanctuary. This is not just a game about stacking; it is a journey of collecting, refining, and curating your own digital garden. THE CRYSTAL GRIMOIRE Discover the all-new collection system. As you play, you will uncover over 60 unique crystals, from common Quartz to rare Holographic and Magma stones. But finding them is just the beginning. Use your tokens to polish rough ores into tumbling gemstones, eventually refining them into flawless, glowing masterpieces. Read detailed lore and properties for every stone you collect. CULTIVATE YOUR ZEN GARDEN Your creations are no longer temporary. In the new Zen Garden, your most impressive towers are preserved as permanent monuments. Visit your garden to rotate through your history, admire your past architectural feats in a serene 3D environment, and plant new seeds to start fresh journeys. THREE UNIQUE GAME MODES CLASSIC MODE The ultimate test of balance. Drag to position blocks, account for wind resistance, and drop them with precision physics. How high can you go before gravity takes over? STACK TAP MODE A fast-paced test of timing. Blocks slide back and forth, requiring you to tap to stack them. Any overhang is sliced off, making the tower thinner and thinner. Hit perfect drops to trigger visual pulses and rebuild your platform size. Now featuring dynamic environments that shift from ground to clouds to space as you ascend. ZEN MODE No game overs, no stress. Just pure, creative building. Create impossible structures and watch them sway without the fear of collapse. Use the new precision placement tools to create art, not just towers. HYPER-REALISTIC PHYSICS Powered by advanced simulation technology, every block feels alive. Experience the floaty weight of wood, the heavy thud of stone, and the slippery surface of ice. Watch your tower sway in the wind and stabilize it with strategic placements. COLLECT EXOTIC MATERIALS Unlock and build with materials that feature unique visual properties and physics. Use Natural blocks like Wood and Mossy Stone, Luxury materials like Gold and Pearl, or Sci-Fi elements like Matrix and Carbon Fiber. ASMR AUDIO AND HAPTICS Feel the game as you play. Custom-tuned haptic feedback mimics the impact of every drop. Build a Perfect streak to hear a harmonizing 12-note musical chime that evolves as your tower grows. ADDITIONAL FEATURES Time Travel Revive allows you to rewind time to a stable state if your tower crashes. Dynamic Studio Lighting creates realistic shadows and reflections that change as you play. Smart Camera systems automatically track your progress, switching between tension and celebration angles. Infinite Progression allows you to unlock limits and build into the stratosphere. In a world of noise, Zen Stack Masters is your quiet place. Download today and start your journey to the top.

About

Relax Coloring

Features
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Relax Coloring is a calm color-by-number game with beautiful pixel art. Pick a picture, choose a color and paint the matching cells. No timers, no pressure, no mistakes โ€” just a quiet moment that turns into a finished piece of art. SWIPE TO PAINT Sweep your finger across the canvas to fill a whole row in one gentle stroke, or tap cells one by one. Wrong cells are simply skipped, so every stroke feels good. FROM QUICK DOODLES TO DETAILED ART Pictures range from cozy 10ร—10 grids for a short break to detailed 40ร—40 artworks for a long, mindful session. Pinch to zoom and move around with two fingers. A PALETTE THAT HELPS Each color shows how much of it is left. Finished colors get a checkmark, and the app moves on to the next color for you. Can't find the last few cells? Tap Find and the canvas zooms right to them. Long-press any cell to pick up its color. WATCH YOUR ART COME ALIVE When a picture is finished, enjoy a timelapse replay of every cell in the order you painted it, then share your artwork as a beautiful poster. 170 HAND-CRAFTED PICTURES โ€ข Basic โ€” 34 free pictures of everyday little joys โ€ข Animals โ€” friends from forest, sea and savanna โ€ข Flowers โ€” a garden that blooms under your brush โ€ข Food โ€” sweet, savory and very cozy โ€ข Anime โ€” spirits, lanterns and kawaii magic Animals, Flowers, Food and Anime are optional one-time purchases. Buy once and keep them forever. MADE FOR RELAXING โ€ข Your progress is saved automatically, so you can come back to any picture anytime โ€ข Soft background music with two melodies โ€ข Gentle sounds and haptics, each easy to turn off โ€ข Works beautifully on iPhone and iPad LEGAL - Privacy Policy: https://vybgss.github.io/relax-coloring-docs/privacy-policy.html - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Zen Stack Masters4 screens
Relax Coloring4 screens

Verdict

The call

Zen Stack Masters and Relax Coloring are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Zen Stack Masters sells 4 one-off in-app purchases and Relax Coloring sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Zen Stack Masters ships an update every 4 days, Relax Coloring every 5 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
Zen Stack Masters versus Relax Coloring: the parameters behind the verdict, then further details
ParameterZen Stack MastersRelax Coloring
PriceFreeFree
Update frequencyEvery 4 days โ€” betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.618.0 โ€” better
Further details โ€” not scored
Size27 MB55 MB
Age rating4+4+
DeveloperGal ItachVolodymyr Sichka

In-app purchases

4 purchases

Zen Stack Masters

One-time4
  • Second Chance Tokens$0.99
  • Infinite Zen Mode$5.99
  • 1000 Tokens Deal$99.99
Show 1 more
  • Zen Master$1000.00
4 purchases

Relax Coloring

One-time4
  • Animals Pack$2.99
  • Flowers Pack$2.99
  • Food Pack$2.99
Show 1 more
  • Anime Pack$2.99

Questions

Is Zen Stack Masters free?
Zen Stack Masters is free to download, with in-app purchases available.
Is Relax Coloring free?
Relax Coloring is free to download, with in-app purchases available.
Do Zen Stack Masters or Relax Coloring have ads?
Neither Zen Stack Masters nor Relax Coloring shows ads.
Which is updated more often, Zen Stack Masters or Relax Coloring?
Zen Stack Masters ships an update every 4 days, and Relax Coloring every 5 days. Most recently, Zen Stack Masters was updated on October 28, 2026 and Relax Coloring on October 25, 2026.

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