# KaiK'eye vs Stack Attack!!

The clearest difference is review sentiment: KaiK'eye at 100% against Stack Attack!!'s 23%. KaiK'eye also leads on in-app purchases (none vs 10) and ads (none vs shown). Stack Attack!!'s advantage is update cadence (every 2 weeks vs every 38 months). On price and device support there is nothing between them.

Both are free to download. Stack Attack!! sells 10 one-off in-app purchases. KaiK'eye asks for nothing beyond the download.

KaiK'eye ships an update every 38 months, Stack Attack!! every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | KaiK'eye | Stack Attack!! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (399 ratings)](https://appshunter.io/ios/app/stack-attack/id6566190313/reviews)** |
| Number of ratings | — | **399** |
| Positive reviews | **100.0% of reviews** | 23.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 101 MB | 247 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [KaiKai SAS](https://appshunter.io/developer/1574908420) | [Voodoo](https://appshunter.io/developer/714804730) |

## What reviewers say

### KaiK'eye

[App page](https://appshunter.io/ios/app/kaikeye-augmented-game/id1575192231)

This app bridges physical board games and digital video games using augmented reality. By scanning a game board, it translates player actions into the video game, bringing board games to life in a new interactive way.

**Highlights:** Real-time game board digitalization, Augmented reality integration, Translates physical actions to video game, Companion app for 'Star Hunters' game, Interactive board game experience

**In-app purchases:** none


### 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 (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $2.99 | one-time |
| No Ads | $2.99 | one-time |
| 2X Speed! | $4.99 | one-time |
| Skip'its Medium Pack | $5.99 | 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 |

**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


## Frequently asked questions

### Is KaiK'eye free?

KaiK'eye is free to download, with no in-app purchases.

### Is Stack Attack!! free?

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

### Do KaiK'eye or Stack Attack!! have ads?

Stack Attack!! shows ads; KaiK'eye does not.

### Which is updated more often, KaiK'eye or Stack Attack!!?

KaiK'eye ships an update every 38 months, and Stack Attack!! every 2 weeks. Most recently, KaiK'eye was updated on November 3, 2026 and Stack Attack!! on October 30, 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.*