# Upblock vs Shackling Shapes

The clearest difference is in-app purchases: Shackling Shapes at none against Upblock's 1. Shackling Shapes also leads on rating (5.0 vs 4.7) and iOS requirement (12.0 vs 15.0). Upblock's advantage is update cadence (every 2 months vs every 5 months) and ratings volume (10 vs 1). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Upblock sells 1 one-off in-app purchase. Shackling Shapes asks for nothing beyond the download.

Shackling Shapes holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Upblock has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Upblock ships an update every 2 months, Shackling Shapes every 5 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Upblock | Shackling Shapes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (10 ratings)](https://appshunter.io/ios/app/upblock-stack-blocks/id1590843768/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shackling-shapes/id1669047699/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 146 MB | 164 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Maka Mobile](https://appshunter.io/developer/1583009679) | [Adknown](https://appshunter.io/developer/1243054661) |

## What reviewers say

### Upblock

[App page](https://appshunter.io/ios/app/upblock-stack-blocks/id1590843768)

Tap to stack blocks and build a neon tower. Perfect your timing to align sliding blocks, or lose overhangs. Earn gems to unlock boosters and stylish skins, and compete on leaderboards.

**Highlights:** Tap to stack blocks, Perfect timing for alignment, Unlock boosters (undo, stacker, slow-mo), Customize tower with skins, Weekly and all-time leaderboards, Earn gems for in-game items

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### Shackling Shapes

[App page](https://appshunter.io/ios/app/shackling-shapes/id1669047699)

An action-arcade game set in a volcano world. Players must move to avoid enemies, find a key, and escape chaotic rooms while being chased. It tests dodging and strategic abilities in a fast-paced environment.

**Highlights:** Volcano-themed world, Fast-paced arcade gameplay, Finger-based player movement, Enemy avoidance challenges, Key finding and room escape objectives, Strategic dodging

**In-app purchases:** none


## Frequently asked questions

### Is Upblock free?

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

### Is Shackling Shapes free?

Shackling Shapes is free to download, with no in-app purchases.

### Which has better reviews, Upblock or Shackling Shapes?

Shackling Shapes is rated higher. Upblock averages 4.7 out of 5 from 10 ratings, while Shackling Shapes averages 5.0 from 1 ratings.

### Do Upblock or Shackling Shapes have ads?

Both Upblock and Shackling Shapes show ads.

### Which is updated more often, Upblock or Shackling Shapes?

Upblock ships an update every 2 months, and Shackling Shapes every 5 months. Most recently, Upblock was updated on November 11, 2026 and Shackling Shapes on November 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.*