Comparison

Dolls Stack vs Merge Brain

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

Head to head
About

Dolls Stack

Engage in a unique match-3 puzzle experience by stacking and merging colorful Russian nesting dolls. Solve challenging levels with stunning visuals, exciting power-ups, and relaxing audio. Compete with friends on leaderboards in this addictive game.

Highlights
  • Match and merge dolls
  • Stunning, colorful graphics
  • Challenging puzzle levels
  • Exciting power-ups
  • Social leaderboards
  • Relaxing music and sounds
Features
Read full description

Welcome to Dolls Stack, the ultimate match 3 game that combines classic puzzle gameplay with the charm of Russian nesting dolls in a new way! Dive into a world of colorful dolls and exciting challenges as you stack and match your way to victory! - Match & Merge: Combine three dolls of the same size and color to create the next-sized doll. Keep stacking to reveal surprises! Matching and merging in one game! - Stunning Visuals: Immerse yourself in the vibrant world of Russian dolls with beautifully designed graphics and charming animations. - Challenging Puzzles: Test your matching skills with a variety of challenging puzzles and brain-teasing levels. Can you solve them all? - Power-Ups Galore: Boost your gameplay with exciting power-ups and special abilities. Crush obstacles and conquer levels with ease! - Social Connection: Connect with friends and compete on leaderboards. Show off your stacking skills and see who can reach the top! - Relaxing Music & Sounds: Enjoy a soothing experience with satisfying sounds and relaxing music. Dolls Stack is the perfect blend of strategy, fun, and creativity. Download now and discover the joy of stacking Russian dolls in this addictive match-3 puzzle game!

About

Merge Brain

A minimalist puzzle game where you link blocks with the same numbers to create higher numbers. Sharpen your mind and concentration with increasingly challenging levels, aiming for the highest score.

Highlights
  • Link same numbered blocks
  • Create higher number blocks
  • Minimalist and modern design
  • Simple controls, challenging gameplay
  • Automatic data save
  • World ranking
  • Infinite time
Features
Read full description

Merge Brain : 2248 Link 2048 Puzzle game, with Minimalistic & Modern designed Blocks and Number in the Game, which lets you think out of the box with all creativity that you have and sharpen your mind with numbers. If you hate numbers or math, or you are thinking games with numbers are not fun, come and try this game and you will change your mind! The objective of the is to drag and link the blocks with the same numbers into the higher numbers consecutively with the multiply of the first number of block that you choose. There will be more and more challenges as the numbers go higher e.g. 1024 - 2048 - 4K - 8K - 16K - 32K and to infinity and beyond. I promise you, once you tried it you will not be able to stop playing this puzzle game. You get to enjoy playing this new top rank puzzle game for free while also improving your brain power, concentration, working details all at the same time without any stress. HOW TO PLAY - Slide the same blocks and with numbers in any of the eight directions (up, down, left, right or diagonally) to merge them. - Link the blocks to higher numbers when you merge multiple same numbers together that sums up to the next numbers. - Link it all and merge all the numbers to get the highest score possible to be the one on top! Special Features - Minimalist & Modern game design. - Simple but satisfying controls. - Easy gameplay but hard to master. - Don't worry losing the data, Automatic Data Save. - World Ranking - Infinite time Best game to play wherever, whenever, anytime you want with your own pace because this game is just for you! The more you play, the more addicted you will get to this game! This game is available in '한국어', 'Indonesian', 'Bahasa malay', 'English', '日本語', '中文简体', '中文繁體', 'Deutsch', 'français', 'Español', 'ไทย', 'Русский', 'Arabic', 'Portuguese', 'Turkish', 'Italian'. Official site: http://superbox.kr Facebook: https://www.facebook.com/superbox01 Email: help@superbox.kr

Screenshots

Dolls Stack4 screens
Merge Brain4 screens

Verdict

The call

The clearest difference is update cadence: Dolls Stack at every 8 days against Merge Brain's every 6 weeks. Dolls Stack also leads on ratings volume (3.6K vs 183) and iOS requirement (13.0 vs 15.0). On price, rating, review sentiment 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

Both are free to download. Dolls Stack sells 17 one-off in-app purchases and Merge Brain sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Dolls Stack against 4.7 for Merge Brain. That said, the two scores are not equally well evidenced: Dolls Stack has 3.6K ratings behind it against 183, so its average is the more settled of the two. Written reviews are what separate them: 51% of Dolls Stack's written reviews are positive against 54% of Merge Brain's.

UpkeepUpdate frequency

Dolls Stack ships an update every 8 days, Merge Brain every 6 weeks. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Dolls Stack versus Merge Brain: the parameters behind the verdict, then further details
ParameterDolls StackMerge Brain
PriceFreeFree
Rating4.7 (3.6K ratings) — better4.7 (183 ratings)
Positive reviews51.1% of reviews54.2% of reviews — better
Number of ratings3.6K — better183
Update frequencyEvery 8 days — betterEvery 6 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size409 MB283 MB
Age rating12+4+
DeveloperVoodooSUPERBOX. Inc

Customer experience

Dolls Stack

All ratings3,628 ratings
Positive93.2%
Neutral4.6%
Negative2.2%
Written reviews45 reviews
Positive51.1%
Neutral24.4%
Negative24.4%

Merge Brain

All ratings183 ratings
Positive92.3%
Neutral2.7%
Negative4.9%
Written reviews24 reviews
Positive54.2%
Neutral12.5%
Negative33.3%

User reviews

Dolls Stack

From 3.6K App Store ratings

What we love

  • 🚀 Fast gameplay
  • 🎨 Cute and unique graphics
  • 👍 Addictive and challenging
  • 💡 Innovative gameplay mechanics

Room to improve

  • 🐛 Levels not registering correctly
  • 🔁 Repetitive level design
  • 🔧 Technical issues and bugs
  • 🔍 Lack of new content

Merge Brain

From 183 App Store ratings

What we love

  • 👍 Fun and enjoyable gameplay
  • ✅ No Wi-Fi required
  • 👍 Good amount of ads (for some)
  • 💡 Suggestion for higher number tiles (2048, 4096, 8192)
  • 🚀 Reached high scores (Septillion, Undecillion)

Room to improve

  • ⏰ Stingy 24-hour reward timer
  • 🐛 Game freezes after update
  • 🐛 Game freezes during long play sessions
  • 🐛 Game lagging
  • 🐛 Paid movements reversed overnight

Bugs and requests

Dolls Stack

Reported bugs

4 issues
  • Levels not registering as completed
  • Daily gift feature not working properly
  • Tutorial not functioning correctly
  • Inconsistent in-app purchase rewards

Requested features

4 requests
  • More level variety
  • Ability to earn extra turns
  • Option to purchase different doll skins
  • Improved customer support

Merge Brain

Reported bugs

8 issues
  • Game gets stuck and screen freezes for a minute or two after recent update
  • Game freezes every time playing for long periods
  • Game keeps lagging
  • Paid Movements reversed overnight
  • Ad pops up and cannot be closed, requiring game exit
Show 3 more
  • Game doesn't recognize available moves, forcing diamond use
  • Screen was red on first launch
  • One number stack is alone, and another hasn't come in a long time

Requested features

6 requests
  • Update reward timer to standard daily reset
  • Add Infinity tile
  • Make game more fun with updates
  • Change 2K, 4K, 8K to 2048, 4096, 8192
  • Add an end goal or finish line to the game
Show 1 more
  • Improve ad experience

In-app purchases

17 purchases

Dolls Stack

One-time17
  • Love Deal Last Chance$0.29
  • Happy Deal Last Chance$0.99
  • Coins 1$1.99
Show 14 more
  • Starter pack$1.99
  • No Ads$2.99
  • Queen Deal Offer$2.99
  • Last Chance Power Deal$3.99
  • Last Chance Ultra Deal$4.99
  • Coins 2$7.99
  • No Ads Bundle$7.99
  • Small pack$9.99
  • No Ads Last Chance$9.99
  • Coins 3$14.99
  • Medium pack$19.99
  • Big pack$39.99
  • Master Deal$54.99
  • Coins 6$99.99
9 purchases

Merge Brain

One-time9
  • Diamond 1000$0.99
  • Diamond 2500$2.99
  • Remove Ads$4.99
Show 6 more
  • Diamond 6000$4.99
  • Diamond Piggy Bank$4.99
  • Diamond 13000$9.99
  • Diamond 35000$29.99
  • Diamond 60000$49.99
  • Diamond 100000$99.99

Questions

Is Dolls Stack free?
Dolls Stack is free to download, with in-app purchases available.
Is Merge Brain free?
Merge Brain is free to download, with in-app purchases available.
Which has better reviews, Dolls Stack or Merge Brain?
Dolls Stack is rated higher. Dolls Stack averages 4.7 out of 5 from 3.6K ratings, while Merge Brain averages 4.7 from 183 ratings.
Do Dolls Stack or Merge Brain have ads?
Both Dolls Stack and Merge Brain show ads.
Which is updated more often, Dolls Stack or Merge Brain?
Dolls Stack ships an update every 8 days, and Merge Brain every 6 weeks. Most recently, Dolls Stack was updated on October 17, 2026 and Merge Brain on October 11, 2026.

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