Comparison

Marimo Merge vs Build A Squishy

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

Head to head
About

Marimo Merge

Features
Read full description

Marimo Merge is a physics merge puzzle game where you drop cute marimo (green algae balls, moss balls) into an aquarium and combine those with the same numbers to grow them bigger and bigger. The rules are simple, but creating large marimo requires careful thinking, and the satisfying merges and addictive chain reactions give the game surprising depth. ● Basic Rules Tap to drop marimo into the field (aquarium) from above. Before dropping, the marimo automatically moves left and right—tap the screen at the right moment to place it where you want. Each marimo has a random number (1, 3, 9, …). When three marimo with the same number come together, they merge into a larger marimo with a higher value. Repeat this to create bigger marimo and earn points by growing them or reaching target sizes and clearing them from the tank. The game ends when five marimo overflow from the field. ● Special Actions + Hold You can hold one marimo before dropping it. By choosing when and which number to drop, you can avoid creating unnecessary gaps and grow your marimo more efficiently. + Shake After dropping several marimo, you can shake the entire tank. This can send separated marimo flying together or force near-misses to merge—potentially saving you from tricky situations. ● Game Modes + Max 2187 Mode When a marimo reaches 2187, it can be cleared from the tank. Clearing creates space, allowing you to continue merging and score even higher. + Max 6561 Mode The maximum value increases to 6561 (three 2187 marimo merged). Enjoy a more challenging and strategic merge puzzle experience. + Max Unlimited Mode Marimo never disappear, no matter how large they become. See how big you can grow them! ● Rankings Compete with marimo masters around the world for the highest merge points. Aim to become the ultimate marimo master!

About

Build A Squishy

Create and interact with unique virtual squishies. Customize their appearance, explore various textures and sounds, and even open them up to play with the internal slime. Save your creations to a personal collection and trade rare ones with others.

Highlights
  • Create custom squishies
  • Interact with textures and sounds
  • Open squishies to play with slime
  • Collect and arrange squishies
  • Trade rare squishies
  • Send squishies as links
  • Offline play
Features
Read full description

Make a squishy, watch it form, then squeeze, poke, stretch and jiggle it as long as you like. Every material has its own calm ASMR sound. No ads. No coins. No tricks. Just squishies. Made by Arden and her dad, in Georgia. Arden plays every version first, and a lot of what's in here started as something she asked for. Make one that's yours. Pick a shape, a color, a finish and what floats inside, from a plain jelly orb to something patterned, pearly or see-through. Play with it. Twenty-three ways to touch it. Flick it into a flip, slow it down, freeze it solid and crack the ice. Open it up. Cut it open to see what's inside, then let the slime out and play with that too. A gift every week. A new squishy arrives each week, and every player starts with a World Treat: Dubai Chocolate, New York Cheesecake, Manila Ube Halo-Halo, Paris Macaron or Java Klepon. Collect and trade. Fill your shelf, finish sets, find hidden recipes, and trade with a cast of shopkeepers (computer characters, never other players) for the rare ones. Send one to a friend as a link, a card or a short video. The link carries only the recipe. For grown-ups: it works fully offline, with no accounts, no chat and no ads. One optional purchase, Squishy Deluxe, adds more to collect. It sits behind a grown-ups gate, is handled by Apple and never expires. Privacy policy: buildasquishy.com/app-privacy

Screenshots

Marimo Merge4 screens
Build A Squishy4 screens

Verdict

The call

The clearest difference is in-app purchases: Marimo Merge at none against Build A Squishy's 1. Marimo Merge also leads on iOS requirement (15.0 vs 18.0). Build A Squishy's advantage is ads (none vs shown) and update cadence (every 4 days vs every 3 months). On price 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

Both are free to download. Build A Squishy sells 1 one-off in-app purchase. Marimo Merge asks for nothing beyond the download.

UpkeepUpdate frequency

Marimo Merge ships an update every 3 months, Build A Squishy every 4 days. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 6 level
Marimo Merge versus Build A Squishy: the parameters behind the verdict, then further details
ParameterMarimo MergeBuild A Squishy
PriceFreeFree
Rating—5.0 (14 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—14 — better
Update frequencyEvery 3 monthsEvery 4 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size199 MB57 MB
Age rating4+4+
DeveloperMasaki KannoGladio LLC

In-app purchases

None

Marimo Merge

No in-app purchases

1 purchases

Build A Squishy

One-time1
  • Squishy Deluxe$6.99

Questions

Is Marimo Merge free?
Marimo Merge is free to download, with no in-app purchases.
Is Build A Squishy free?
Build A Squishy is free to download, with in-app purchases available.
Do Marimo Merge or Build A Squishy have ads?
Marimo Merge shows ads; Build A Squishy does not.
Which is updated more often, Marimo Merge or Build A Squishy?
Marimo Merge ships an update every 3 months, and Build A Squishy every 4 days. Most recently, Marimo Merge was updated on October 17, 2026 and Build A Squishy on October 21, 2026.

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