# Gridfall 3D vs Prismelle

The clearest difference is in-app purchases: Gridfall 3D at none against Prismelle's 1. Gridfall 3D also leads on iOS requirement (15.6 vs 18.0). Prismelle's advantage is update cadence (every 2 days vs weekly). On price, ads and device support there is nothing between them.

Both are free to download. Prismelle sells 1 one-off in-app purchase. Gridfall 3D asks for nothing beyond the download.

Gridfall 3D ships an update weekly, Prismelle every 2 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Gridfall 3D | Prismelle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/prismelle-light-puzzles/id6813285959/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 18 MB | 60 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [箫 王](https://appshunter.io/developer/1841884894) | [贵权 陈](https://appshunter.io/developer/6809852956) |

## What reviewers say

### Gridfall 3D

[App page](https://appshunter.io/ios/app/gridfall-3d-falling-blocks/id6753803501)

**Features:** Vision Pro support

**In-app purchases:** none


### Prismelle

[App page](https://appshunter.io/ios/app/prismelle-light-puzzles/id6813285959)

Guide light beams through intricate puzzles by strategically placing and rotating prisms, mirrors, and lenses. Solve 50 unique challenges across two distinct visual themes, with additional content available on iPad.

**Highlights:** Drag and rotate optical elements, Split white light into colors, Reflect beams around obstacles, Focus light paths to targets, 50 curated puzzles, Two distinct visual themes, Offline play supported

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prismelle Pro | $5.99 | one-time |


## Frequently asked questions

### Is Gridfall 3D free?

Gridfall 3D is free to download, with no in-app purchases.

### Is Prismelle free?

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

### Do Gridfall 3D or Prismelle have ads?

Both Gridfall 3D and Prismelle show ads.

### Which is updated more often, Gridfall 3D or Prismelle?

Gridfall 3D ships an update weekly, and Prismelle every 2 days. Most recently, Gridfall 3D was updated on October 28, 2026 and Prismelle on October 31, 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.*