# Stack Attack!! vs Inventory Merge Combat

The clearest difference is rating: Inventory Merge Combat at 4.6 against Stack Attack!!'s 4.3. On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Stack Attack!! sells 19 one-off in-app purchases and Inventory Merge Combat sells 13 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Inventory Merge Combat holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 403 and 850 respectively. Written reviews split almost evenly too, at 23% and 24% positive.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Stack Attack!! | Inventory Merge Combat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (403 ratings)](https://appshunter.io/ios/app/stack-attack/id6566190313/reviews) | **[4.6 (850 ratings)](https://appshunter.io/ios/app/inventory-merge-combat/id6741464317/reviews)** |
| Number of ratings | 403 | **850** |
| Positive reviews | 23.2% of reviews | **24.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 247 MB | 232 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Voodoo](https://appshunter.io/developer/714804730) | [IEC GAMES AUSTRALIA PTY LTD](https://appshunter.io/developer/1551788418) |

## What reviewers say

### Stack Attack!!

[App page](https://appshunter.io/ios/app/stack-attack/id6566190313)

Engage in intense battles against waves of enemies, strategically demolishing their formations with powerful weapons. Upgrade your capabilities by selecting the best skills to protect the cube world from a malevolent hex invasion.

**Highlights:** Defeat enemy waves, Demolish enemy stacks, Upgrade skills, Save the cube world, Space invader gameplay

**Features:** macOS Compatibility

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gem Pack Small | $0.99 | one-time |
| Gold Pack Small | $0.99 | one-time |
| Starter Pack | $2.99 | one-time |
| No Ads | $2.99 | one-time |
| Gem Pack Medium | $4.99 | one-time |
| 2X Speed! | $4.99 | one-time |
| Gold Pack Medium | $4.99 | one-time |
| Skip'its Medium Pack | $5.99 | one-time |
| Gem Pack Large | $9.99 | one-time |
| Gold Pack Large | $9.99 | one-time |
| Premium Pass | $14.99 | one-time |
| Gem Pack XL | $19.99 | one-time |
| Skip'its Large Pack | $19.99 | one-time |
| Gold Pack XL | $19.99 | one-time |
| Diamond Hero | $29.99 | one-time |
| Gem Pack XXL | $49.99 | one-time |
| Gold Pack XXL | $49.99 | one-time |
| Gem Pack XXXL | $99.99 | one-time |
| Gold Pack XXXL | $99.99 | one-time |

**What reviewers like**

- 👍 Simple and fun gameplay
- 🚀 No ads or microtransactions
- 💡 Nice armor upgrade system

**What reviewers complain about**

- 🐛 Glitches and bugs, especially after updates
- 🐛 Progress and upgrades getting reset or lost
- 🐛 Levels becoming unplayable after a certain point

**Reported bugs**

- Enemies' health scaling with player's attack power
- Levels freezing or getting stuck at checkpoints
- Weapon and upgrade levels getting downgraded randomly

**Requested features**

- Mute sound effects option
- Better communication from developers about updates
- More content and stages to progress through


### Inventory Merge Combat

[App page](https://appshunter.io/ios/app/inventory-merge-combat/id6741464317)

Strategically merge warships, planes, and items to build the ultimate fleet. Engage in challenging naval battles against increasingly difficult enemies. Test your strategic skills to become the ultimate naval commander.

**Highlights:** Merge ships, planes, and items, Build a powerful fleet, Engage in naval combat, Progress through various levels, Strategic item merging

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diamond 1 | $0.49 | one-time |
| Diamond 2 | $2.49 | one-time |
| No Forced Ads | $2.99 | one-time |
| Fast Forward | $3.99 | one-time |
| Chapter Deal | $3.99 | one-time |
| Diamond 3 | $3.99 | one-time |
| Litmited Offer Premium Pack | $4.99 | one-time |
| Welcome Bundle | $4.99 | one-time |
| Welcome Bundle | $6.99 | one-time |
| Premium pack | $9.99 | one-time |
| Diamond 4 | $9.99 | one-time |
| Diamond 5 | $24.99 | one-time |
| Diamond 6 | $49.99 | one-time |

**What reviewers like**

- 🚀 Fun gameplay
- 👍 Affordable to remove ads
- 👍 Helpful to watch ads for extra stuff

**What reviewers complain about**

- 🔍 Stingy with rewards and upgrades
- 💰 Being used for ad revenue
- 🔍 Too many forced ads
- 🐛 Bug issues
- 🔍 Ads doubled in length after purchase

**Reported bugs**

- Forced ads even after purchase
- Lack of sound effects

**Requested features**

- Daily reward system for coins and gems
- Easier to get new ships
- More ships and unique level backgrounds
- More slots for inventory


## Frequently asked questions

### Is Stack Attack!! free?

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

### Is Inventory Merge Combat free?

Inventory Merge Combat is free to download, with in-app purchases available.

### Which has better reviews, Stack Attack!! or Inventory Merge Combat?

Inventory Merge Combat is rated higher. Stack Attack!! averages 4.3 out of 5 from 403 ratings, while Inventory Merge Combat averages 4.6 from 850 ratings.

### Do Stack Attack!! or Inventory Merge Combat have ads?

Both Stack Attack!! and Inventory Merge Combat show ads.

### Which is updated more often, Stack Attack!! or Inventory Merge Combat?

Stack Attack!! ships an update every 2 weeks, and Inventory Merge Combat every 2 weeks. Most recently, Stack Attack!! was updated on October 2, 2026 and Inventory Merge Combat 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.*