# Dolls Stack vs Merge Brain

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.

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.

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.

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.

## The numbers

| Metric | Dolls Stack | Merge Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3.6K ratings)](https://appshunter.io/ios/app/dolls-stack-match-and-stack/id1659053906/reviews)** | [4.7 (183 ratings)](https://appshunter.io/ios/app/merge-brain-2248/id6449523076/reviews) |
| Number of ratings | **3.6K** | 183 |
| Positive reviews | 51.1% of reviews | **54.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 8 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 409 MB | 283 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Voodoo](https://appshunter.io/developer/714804730) | [SUPERBOX. Inc](https://appshunter.io/developer/1165756567) |

## What reviewers say

### Dolls Stack

[App page](https://appshunter.io/ios/app/dolls-stack-match-and-stack/id1659053906)

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:** macOS Compatibility

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Love Deal Last Chance | $0.29 | one-time |
| Happy Deal Last Chance | $0.99 | one-time |
| Coins 1 | $1.99 | one-time |
| Starter pack | $1.99 | one-time |
| No Ads | $2.99 | one-time |
| Queen Deal Offer | $2.99 | one-time |
| Last Chance Power Deal | $3.99 | one-time |
| Last Chance Ultra Deal | $4.99 | one-time |
| Coins 2 | $7.99 | one-time |
| No Ads Bundle | $7.99 | one-time |
| Small pack | $9.99 | one-time |
| No Ads Last Chance | $9.99 | one-time |
| Coins 3 | $14.99 | one-time |
| Medium pack | $19.99 | one-time |
| Big pack | $39.99 | one-time |
| Master Deal | $54.99 | one-time |
| Coins 6 | $99.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


### Merge Brain

[App page](https://appshunter.io/ios/app/merge-brain-2248/id6449523076)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diamond 1000 | $0.99 | one-time |
| Diamond 2500 | $2.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Diamond 6000 | $4.99 | one-time |
| Diamond Piggy Bank | $4.99 | one-time |
| Diamond 13000 | $9.99 | one-time |
| Diamond 35000 | $29.99 | one-time |
| Diamond 60000 | $49.99 | one-time |
| Diamond 100000 | $99.99 | one-time |

**What reviewers like**

- 👍 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)

**What reviewers complain about**

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

**Reported bugs**

- 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

**Requested features**

- 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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*