# Letter Evolution 3D vs Monster Merge!

The clearest difference is ads: Letter Evolution 3D at none against Monster Merge!'s shown. Letter Evolution 3D also leads on update cadence (every 2 days vs every 3 months) and monetization model (free vs ad-supported). On price, rating, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.4 for Letter Evolution 3D against 4.3 for Monster Merge!. Both are backed by a comparable volume of ratings — 77 and 24 respectively.

Letter Evolution 3D ships an update every 2 days, Monster Merge! every 3 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Letter Evolution 3D | Monster Merge! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (77 ratings)](https://appshunter.io/ios/app/letter-evolution-3d-mergeio/id1661400387/reviews)** | [4.3 (24 ratings)](https://appshunter.io/ios/app/monster-merge/id6452757021/reviews) |
| Number of ratings | **77** | 24 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 3 months |
| Monetization | **Free** | Ad-supported |
| Size | 178 MB | 262 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Huu Nguyen](https://appshunter.io/developer/1577751336) | [Yso Corp](https://appshunter.io/developer/659815325) |

## What reviewers say

### Letter Evolution 3D

[App page](https://appshunter.io/ios/app/letter-evolution-3d-mergeio/id1661400387)

Collect and unlock letters to build a powerful squad. Expand your collection and strategize to create the ultimate letter team. Enjoy a simple yet engaging collection and merging game experience.

**Highlights:** Collect all letters, Unlock letter powers, Build a letter squad, Evolve your collection, Merge letters

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Monster Merge!

[App page](https://appshunter.io/ios/app/monster-merge/id6452757021)

Collect and merge adorable monsters to create powerful allies for your quest. Upgrade your creatures by combining them to unlock new abilities and progress through an exciting adventure.

**Highlights:** Monster collection, Monster merging and upgrading, Adventure gameplay, Cute monster designs, Simple controls

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Letter Evolution 3D free?

Letter Evolution 3D is free to download, with no in-app purchases.

### Is Monster Merge! free?

Monster Merge! is free to download, with no in-app purchases.

### Which has better reviews, Letter Evolution 3D or Monster Merge!?

Letter Evolution 3D is rated higher. Letter Evolution 3D averages 4.4 out of 5 from 77 ratings, while Monster Merge! averages 4.3 from 24 ratings.

### Do Letter Evolution 3D or Monster Merge! have ads?

Monster Merge! shows ads; Letter Evolution 3D does not.

### Which is updated more often, Letter Evolution 3D or Monster Merge!?

Letter Evolution 3D ships an update every 2 days, and Monster Merge! every 3 months. Most recently, Letter Evolution 3D was updated on October 30, 2026 and Monster Merge! on October 24, 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.*