# Ultimate Briefcase vs Kaiju Rush

Ultimate Briefcase and Kaiju Rush both sit at 4.4 stars, but that hides the real split: 66% of Ultimate Briefcase's written reviews are positive against 25% of Kaiju Rush's. Ultimate Briefcase also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.6). Kaiju Rush's advantage is update cadence (every 2 weeks vs every 2 months) and ratings volume (13K vs 214). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Ultimate Briefcase sells 4 one-off in-app purchases and Kaiju Rush sells 5 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for Ultimate Briefcase against 4.4 for Kaiju Rush. That said, the two scores are not equally well evidenced: Kaiju Rush has 13K ratings behind it against 214, so its average is the more settled of the two. Written reviews are what separate them: 66% of Ultimate Briefcase's written reviews are positive against 25% of Kaiju Rush's.

Ultimate Briefcase ships an update every 2 months, Kaiju Rush every 2 weeks. Both last shipped on October 21, 2026.

## The numbers

| Metric | Ultimate Briefcase | Kaiju Rush |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (214 ratings)](https://appshunter.io/ios/app/ultimate-briefcase/id1047666264/reviews)** | [4.4 (13K ratings)](https://appshunter.io/ios/app/kaiju-rush/id1423042788/reviews) |
| Number of ratings | 214 | **13K** |
| Positive reviews | **66.0% of reviews** | 25.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 62 MB | 86 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Nitrome](https://appshunter.io/developer/568079484) | [Lucky Kat Studios](https://appshunter.io/developer/498980984) |

## What reviewers say

### Ultimate Briefcase

[App page](https://appshunter.io/ios/app/ultimate-briefcase/id1047666264)

Engage in a survival simulator where you dodge relentless waves of automated machines. Utilize unique characters with upgradable abilities and explore diverse city environments to uncover the mystery behind the onslaught and the titular briefcase.

**Highlights:** Dodge automated machine onslaughts, Use ridiculous special moves, Unlock unique characters with upgradable abilities, Explore diverse city areas, Unlock items for survival and coins, Collect security footage to piece together the story

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Coins! | $1.99 | one-time |
| 2,000 Coins! | $2.99 | one-time |
| Remove Ads | $3.99 | one-time |
| 5,000 Coins! | $4.99 | one-time |

**What reviewers like**

- 👍 Great game, fun and addictive
- 🎨 Beautiful pixel art and graphics
- 🎶 Awesome chiptune music
- 💰 Good value for free-to-play
- 🔍 Interesting story and lore

**What reviewers complain about**

- 🐛 Crashes and bugs, especially after updates
- 💰 Aggressive monetization, hard to progress without paying
- 🕹️ Controls and difficulty curve issues
- 🔍 Lack of content and progression after unlocking everything

**Reported bugs**

- Fatal errors causing app to crash
- Glissant character slide not working properly
- Game Center integration not functioning
- Landscape mode issues with UI elements

**Requested features**

- More levels, characters, and power-ups
- Improved save/sync functionality across devices
- Accessibility options like high contrast mode
- Ability to skip cutscenes and animations


### Kaiju Rush

[App page](https://appshunter.io/ios/app/kaiju-rush/id1423042788)

Control giant monsters to smash cities with simple one-tap gameplay. Upgrade your monsters to improve distance, unlock new creatures, and discover more buildings. Enjoy fun, destructive action.

**Highlights:** One-tap controls, Variety of Kaiju creatures, Monster upgrades, Improve distance, Unlock new monsters, Smash buildings

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| King Kaiju Subscription | $7.99 | per 7 days |
| Gem Pack 1 | $1.99 | one-time |
| No Ads | $2.99 | one-time |
| Gem Pack 2 | $4.99 | one-time |
| Gem Pack 3 | $11.99 | one-time |

**What reviewers like**

- 🚀 Cute and addictive gameplay
- 👍 Adorable pixel art style
- 🎨 Diverse and creative Kaiju designs

**What reviewers complain about**

- 🐛 Frequent bugs and glitches
- 💰 Excessive ads and aggressive monetization
- 🔋 Performance issues and crashes
- 🤯 Frustrating subscription model

**Reported bugs**

- Kaiju getting stuck in infinite bouncing loop
- Inability to select or hatch new Kaiju
- Freezing and crashing during gameplay
- Offline earnings not updating correctly

**Requested features**

- More unique Kaiju abilities and animations
- Improved offline progress tracking
- Reduced ad frequency and optional ad-free mode
- Better progression system and content unlocks


## Frequently asked questions

### Is Ultimate Briefcase free?

Ultimate Briefcase is free to download, with in-app purchases available.

### Is Kaiju Rush free?

Kaiju Rush is free to download, with in-app purchases available.

### Which has better reviews, Ultimate Briefcase or Kaiju Rush?

Ultimate Briefcase is rated higher. Ultimate Briefcase averages 4.4 out of 5 from 214 ratings, while Kaiju Rush averages 4.4 from 13K ratings.

### Do Ultimate Briefcase or Kaiju Rush have ads?

Kaiju Rush shows ads; Ultimate Briefcase does not.

### Which is updated more often, Ultimate Briefcase or Kaiju Rush?

Ultimate Briefcase ships an update every 2 months, and Kaiju Rush every 2 weeks. Most recently, Ultimate Briefcase was updated on October 21, 2026 and Kaiju Rush on October 21, 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.*