# Block Stack vs Checkin Sort

The clearest difference is update cadence: Checkin Sort at every 3 days against Block Stack's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Block Stack ships an update every 3 weeks, Checkin Sort every 3 days. The most recent releases landed on September 14, 2026 and December 25, 2025 respectively.

## The numbers

| Metric | Block Stack | Checkin Sort |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/block-stack-brick-puzzle/id6648796317/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 90 MB | 139 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Superfly Oyun Teknolojileri Anonim Sirketi](https://appshunter.io/developer/1732512653) | [Pham Anh](https://appshunter.io/developer/881929073) |

## What reviewers say

### Block Stack

[App page](https://appshunter.io/ios/app/block-stack-brick-puzzle/id6648796317)

A relaxing puzzle game where you sort and stack colored blocks to clear the board. Test your logic and reasoning skills by making strategic choices to build high stacks and overcome challenging levels.

**Highlights:** Block sorting and stacking, Strategic decision-making, Challenging levels, Logic and reasoning tests, Satisfying visual effects, High-quality graphics

**Features:** macOS Compatibility

**In-app purchases:** none


### Checkin Sort

[App page](https://appshunter.io/ios/app/checkin-sort/id6651825847)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Block Stack free?

Block Stack is free to download, with no in-app purchases.

### Is Checkin Sort free?

Checkin Sort is free to download, with no in-app purchases.

### Do Block Stack or Checkin Sort have ads?

Both Block Stack and Checkin Sort show ads.

### Which is updated more often, Block Stack or Checkin Sort?

Block Stack ships an update every 3 weeks, and Checkin Sort every 3 days. Most recently, Block Stack was updated on September 14, 2026 and Checkin Sort on December 25, 2025.

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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.*