# Block Forge vs Cairn

The clearest difference is ads: Cairn at none against Block Forge's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Block Forge sells 5 one-off in-app purchases and Cairn sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Block Forge ships an update weekly, Cairn every 11 days. The most recent releases landed on September 2, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Block Forge | Cairn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/block-forge-puzzle-blocks/id6779804372/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 11 days |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 8 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ITechX Solutions L.L.C-FZ](https://appshunter.io/developer/6779804374) | [Branko Borota](https://appshunter.io/developer/1228658475) |

## What reviewers say

### Block Forge

[App page](https://appshunter.io/ios/app/block-forge-puzzle-blocks/id6779804372)

A visually appealing block puzzle game where you drag and drop pieces onto an 8x8 grid to clear lines. Enjoy endless gameplay, challenging levels, and daily puzzles with satisfying visual and haptic feedback. No timers or pressure, just strategic block placement.

**Highlights:** Drag and drop block placement, Clear rows and columns, Satisfying visual and haptic feedback, Endless mode, 60 handcrafted levels, Daily Challenge mode, Boosters for assistance

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Coins | $0.99 | one-time |
| Starter Pack | $1.99 | one-time |
| 1,800 Coins | $2.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 6,000 Coins | $7.99 | one-time |


### Cairn

[App page](https://appshunter.io/ios/app/cairn-stone-stack/id6782169883)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $1.99 | one-time |


## Frequently asked questions

### Is Block Forge free?

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

### Is Cairn free?

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

### Do Block Forge or Cairn have ads?

Block Forge shows ads; Cairn does not.

### Which is updated more often, Block Forge or Cairn?

Block Forge ships an update weekly, and Cairn every 11 days. Most recently, Block Forge was updated on September 2, 2026 and Cairn on September 8, 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.*