# Merge Defense 3D! vs Bold Attack

The clearest difference is rating: Bold Attack at 4.6 against Merge Defense 3D!'s 3.7. Bold Attack also leads on update cadence (daily vs every 3 weeks). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Merge Defense 3D! sells 5 one-off in-app purchases and Bold Attack sells 15 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Bold Attack holds the better App Store score, 4.6 against 3.7. Both are backed by a comparable volume of ratings — 1.1K and 418 respectively. Written reviews complicate that: 25% of Merge Defense 3D!'s written reviews are positive against 19% of Bold Attack's, so the app with the better star average is not the one people write more warmly about.

Merge Defense 3D! ships an update every 3 weeks, Bold Attack daily. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Merge Defense 3D! | Bold Attack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (1.1K ratings)](https://appshunter.io/ios/app/merge-defense-3d/id1490412270/reviews) | **[4.6 (418 ratings)](https://appshunter.io/ios/app/bold-attack/id6737899666/reviews)** |
| Number of ratings | **1.1K** | 418 |
| Positive reviews | **24.5% of reviews** | 19.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 157 MB | 142 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tatem Games Inc.](https://appshunter.io/developer/1259148330) | [Upperpik Oyun Yazilim ve Pazarlama Ticaret Anonim Sirketi](https://appshunter.io/developer/1225221447) |

## What reviewers say

### Merge Defense 3D!

[App page](https://appshunter.io/ios/app/merge-defense-3d/id1490412270)

A turn-based tower defense game where players strategically place and merge defenders to fend off advancing enemy blocks. It offers offline play and a challenging puzzle experience for a daring mind.

**Highlights:** Turn-based gameplay, Merge defenders to upgrade, Strategic placement, Offline play, Challenging puzzle, Power-ups and unlocks

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pack of Gems | $0.99 | one-time |
| Double Gems | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Promo Bundle | $3.99 | one-time |
| Big Promo Bundle | $6.99 | one-time |

**What reviewers like**

- ⭐ Good game concept
- 🎮 Enjoyable gameplay
- 💎 Addictive

**What reviewers complain about**

- 💸 Excessive ads
- 🔁 Ads interrupt gameplay
- 🔒 Paid ad-free version doesn't work
- 🐛 Glitches and crashes
- 🔋 Drains battery quickly

**Reported bugs**

- Paid ad-free version doesn't remove ads
- Game freezes during ads
- Progress lost when game crashes

**Requested features**

- Add 'End Turn' button
- Improve difficulty scaling past level 1000
- Increase max level for defense towers


### Bold Attack

[App page](https://appshunter.io/ios/app/bold-attack/id6737899666)

Engage in exciting battles where you wield letter-based weapons. Evolve your character, unlock powerful abilities, and conquer new planets to face increasingly formidable foes.

**Highlights:** Evolve and gain new skills, Unlock powerful weapons, Conquer new planets, Dominate tough opponents, Face bigger and badder enemies

**Features:** macOS Compatibility

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cash Kickstart Pack | $1.99 | one-time |
| Ticket 10 | $1.99 | one-time |
| 2X Damage | $2.99 | one-time |
| 2X Speed | $2.99 | one-time |
| Money Fountain Pack | $2.99 | one-time |
| Ticket 20 | $2.99 | one-time |
| 2X Income | $3.99 | one-time |
| Royal Treasury Pack | $4.99 | one-time |
| Ticket 50 | $4.99 | one-time |
| No Ads | $4.99 | one-time |
| 30 Tickets and No Ads | $5.99 | one-time |
| Mega Bundle | $7.99 | one-time |
| Treasury Trove Pack | $7.99 | one-time |
| Big Vault Pack | $8.99 | one-time |
| Big Chest Treasure | $11.99 | one-time |

**What reviewers like**

- 🚀 Addictive gameplay
- 👍 Good game concept

**What reviewers complain about**

- 🚫 Excessive ads
- 🐛 Bugs and glitches
- 💤 Lack of depth after early levels

**Reported bugs**

- Enemies remain alive after being killed
- Inability to collect dropped items

**Requested features**

- Endless mode
- Reduce ad frequency
- Improve performance and stability


## Frequently asked questions

### Is Merge Defense 3D! free?

Merge Defense 3D! is free to download, with in-app purchases available.

### Is Bold Attack free?

Bold Attack is free to download, with in-app purchases available.

### Which has better reviews, Merge Defense 3D! or Bold Attack?

Bold Attack is rated higher. Merge Defense 3D! averages 3.7 out of 5 from 1.1K ratings, while Bold Attack averages 4.6 from 418 ratings.

### Do Merge Defense 3D! or Bold Attack have ads?

Both Merge Defense 3D! and Bold Attack show ads.

### Which is updated more often, Merge Defense 3D! or Bold Attack?

Merge Defense 3D! ships an update every 3 weeks, and Bold Attack daily. Most recently, Merge Defense 3D! was updated on September 24, 2026 and Bold Attack on September 23, 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.*