# 321! vs Unblock Block!

The clearest difference is ads: 321! at none against Unblock Block!'s shown. 321! also leads on update cadence (every 2 weeks vs every 4 months) and iOS requirement (9.0 vs 13.0). Unblock Block!'s advantage is review sentiment (100% vs 66%) and rating (4.5 vs 4.2). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. 321! sells 2 one-off in-app purchases and Unblock Block! sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Unblock Block! holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 32 and 94 respectively. Written reviews point the same way: 66% of 321!'s written reviews are positive against 100% of Unblock Block!'s.

321! ships an update every 2 weeks, Unblock Block! every 4 months. Both last shipped on September 24, 2026.

## The numbers

| Metric | 321! | Unblock Block! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (32 ratings)](https://appshunter.io/ios/app/321-angles-do-matter/id827107898/reviews) | **[4.5 (94 ratings)](https://appshunter.io/ios/app/unblock-block/id1279140916/reviews)** |
| Number of ratings | 32 | **94** |
| Positive reviews | 66.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 16 MB | 31 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Antonio Jr](https://appshunter.io/developer/827107901) | [凤娇 徐](https://appshunter.io/developer/1279140915) |

## What reviewers say

### 321!

[App page](https://appshunter.io/ios/app/321-angles-do-matter/id827107898)

A physics-based puzzle game that challenges your math and physics knowledge to find perfect angles for seemingly impossible passes. Compete against your own scores and share your achievements.

**Highlights:** Physics-based gameplay, Mathematical puzzles, Score-based challenges, Shareable results, Inspired by Flash game

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extra shot | $0.99 | one-time |
| Upgrade to Pro | $4.99 | one-time |


### Unblock Block!

[App page](https://appshunter.io/ios/app/unblock-block/id1279140916)

A challenging puzzle game where you slide blocks to free the red block and reach the exit. Offers thousands of levels, daily rewards, and multiple themes to keep your mind sharp. Perfect for all ages looking for a fun brain-training experience.

**Highlights:** 18600+ unique levels, Stage and Classic game modes, 10 customizable themes, Daily rewards and hints, Leaderboards and achievements, Progress tracking, Hint, Reset, and Undo buttons

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Hints Pack | $0.99 | one-time |
| 30 Hints Pack | $1.99 | one-time |
| 120 Hints Pack | $2.99 | one-time |
| 250 Hints Pack | $5.99 | one-time |
| 500 Hints Pack | $9.99 | one-time |
| 1200 Hints Pack | $19.99 | one-time |


## Frequently asked questions

### Is 321! free?

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

### Is Unblock Block! free?

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

### Which has better reviews, 321! or Unblock Block!?

Unblock Block! is rated higher. 321! averages 4.2 out of 5 from 32 ratings, while Unblock Block! averages 4.5 from 94 ratings.

### Do 321! or Unblock Block! have ads?

Unblock Block! shows ads; 321! does not.

### Which is updated more often, 321! or Unblock Block!?

321! ships an update every 2 weeks, and Unblock Block! every 4 months. Most recently, 321! was updated on September 24, 2026 and Unblock Block! on September 24, 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.*