# Crowd Flow 3D! vs Slab

The clearest difference is in-app purchases: Crowd Flow 3D! at none against Slab's 1. Crowd Flow 3D! also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Slab sells 1 one-off in-app purchase. Crowd Flow 3D! asks for nothing beyond the download.

Crowd Flow 3D! ships an update daily, Slab every 3 days. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Crowd Flow 3D! | Slab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/slab-zen-stack/id6790939204/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 145 MB | 140 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Emrullah Can Demirpolat](https://appshunter.io/developer/1533074907) | [QUIETSPIRE LLC](https://appshunter.io/developer/6790939206) |

## What reviewers say

### Crowd Flow 3D!

[App page](https://appshunter.io/ios/app/crowd-flow-3d/id6777064218)

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

**In-app purchases:** none


### Slab

[App page](https://appshunter.io/ios/app/slab-zen-stack/id6790939204)

A relaxing, one-tap block-stacking game where precision is key. Build your tower higher by landing blocks perfectly, with challenges increasing as your target shrinks. Unlock new skins and worlds by playing.

**Highlights:** One-tap block dropping gameplay, Increasingly challenging target, Perfect landing bonuses, Unlockable skins and worlds, Daily gifts and challenges, Rewarded ads for revives/crystals

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Crowd Flow 3D! free?

Crowd Flow 3D! is free to download, with no in-app purchases.

### Is Slab free?

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

### Do Crowd Flow 3D! or Slab have ads?

Slab shows ads; Crowd Flow 3D! does not.

### Which is updated more often, Crowd Flow 3D! or Slab?

Crowd Flow 3D! ships an update daily, and Slab every 3 days. Most recently, Crowd Flow 3D! was updated on October 12, 2026 and Slab on October 3, 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.*