# Flat Pack vs Slime Labs 3

The clearest difference is in-app purchases: Slime Labs 3 at none against Flat Pack's 1. Flat Pack's advantage is update cadence (weekly vs every 14 months) and rating (4.7 vs 4.3). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Flat Pack sells 1 one-off in-app purchase. Slime Labs 3 asks for nothing beyond the download.

Flat Pack holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Flat Pack has 4.4K ratings behind it against 37, so its average is the more settled of the two. Written reviews point the same way: 85% of Flat Pack's written reviews are positive against 60% of Slime Labs 3's.

Flat Pack ships an update weekly, Slime Labs 3 every 14 months. Both last shipped on October 13, 2026.

## The numbers

| Metric | Flat Pack | Slime Labs 3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (4.4K ratings)](https://appshunter.io/ios/app/flat-pack/id1206776375/reviews)** | [4.3 (37 ratings)](https://appshunter.io/ios/app/slime-labs-3/id6446032772/reviews) |
| Number of ratings | **4.4K** | 37 |
| Positive reviews | **85.1% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 14 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 151 MB | 34 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Nitrome](https://appshunter.io/developer/568079484) | [Gionathan Pesaresi](https://appshunter.io/developer/774933633) |

## What reviewers say

### Flat Pack

[App page](https://appshunter.io/ios/app/flat-pack/id1206776375)

Experience a unique platformer that blends 2D and 3D gameplay. Navigate over 30 levels filled with challenging traps, enemies, and epic boss fights. Explore a real-world environment with the innovative AR Mode.

**Highlights:** 2D and 3D hybrid gameplay, Over 30 unique levels, AR Mode for real-world environments, Cool traps and enemies, Epic boss fights, One-handed controls, Secret stars and ending

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads - premium | $3.99 | one-time |


### Slime Labs 3

[App page](https://appshunter.io/ios/app/slime-labs-3/id6446032772)

Navigate a frozen lab filled with slippery ice and dangerous traps as a shape-shifting blob of ooze. Master physics-based platforming challenges, collect data disks, and uncover secrets in this retro-inspired adventure.

**Highlights:** Super fun slime physics, Addicting gameplay, New game mechanics, Catchy retro tunes, Secrets and multiple endings, Frozen lab exploration

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

**In-app purchases:** none


## Frequently asked questions

### Is Flat Pack free?

Flat Pack is free to download, with in-app purchases available.

### Is Slime Labs 3 free?

Slime Labs 3 is free to download, with no in-app purchases.

### Which has better reviews, Flat Pack or Slime Labs 3?

Flat Pack is rated higher. Flat Pack averages 4.7 out of 5 from 4.4K ratings, while Slime Labs 3 averages 4.3 from 37 ratings.

### Do Flat Pack or Slime Labs 3 have ads?

Both Flat Pack and Slime Labs 3 show ads.

### Which is updated more often, Flat Pack or Slime Labs 3?

Flat Pack ships an update weekly, and Slime Labs 3 every 14 months. Most recently, Flat Pack was updated on October 13, 2026 and Slime Labs 3 on October 13, 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.*