# 321 vs KaruQ

The clearest difference is price: 321 at Free against KaruQ's $1.99. 321 also leads on update cadence (every 2 weeks vs every 3 months). KaruQ's advantage is rating (4.9 vs 4.2) and in-app purchases (none vs 2). On ratings volume, ads and device support there is nothing between them.

321 is free to download; KaruQ costs $1.99 up front. 321 sells 2 one-off in-app purchases. KaruQ asks for nothing beyond the download.

KaruQ holds the better App Store score, 4.9 against 4.2. Both are backed by a comparable volume of ratings — 32 and 63 respectively. Written reviews point the same way: 66% of 321's written reviews are positive against 91% of KaruQ's.

321 ships an update every 2 weeks, KaruQ every 3 months. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 321 | KaruQ |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.2 (32 ratings)](https://appshunter.io/ios/app/321-angles-do-matter/id827107898/reviews) | **[4.9 (63 ratings)](https://appshunter.io/ios/app/karuq/id6742257994/reviews)** |
| Number of ratings | 32 | **63** |
| Positive reviews | 66.0% of reviews | **90.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 13 MB | 82 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | iPhone, iPad, Apple TV | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Antonio Jr](https://appshunter.io/developer/827107901) | [Ryuji Kuwaki](https://appshunter.io/developer/372117022) |

## What reviewers say

### 321

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

This physics puzzle game challenges players to make precise angle adjustments to achieve perfect passes and high scores. It offers a maddeningly addictive experience that requires mathematical engineering for optimal gameplay.

**Highlights:** Physics-based puzzles, Angle adjustment mechanics, High score challenges, Mathematical engineering gameplay, Maddeningly addictive

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

**In-app purchases (2)**

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


### KaruQ

[App page](https://appshunter.io/ios/app/karuq/id6742257994)

Engage in a unique math puzzle game where you defeat ghosts by matching numbers with flames. Merge, split, and add to flames to create the correct calculations. Explore over 190 puzzles, daily challenges, and a creative mode to build and share your own levels.

**Highlights:** Defeat ghosts with numerical flames, Merge and split flames for calculations, Over 190 unique puzzles, Daily challenge mode, Puzzle creation and sharing, QR code puzzle scanning

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

**In-app purchases:** none


## Frequently asked questions

### Is 321 free?

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

### Is KaruQ free?

KaruQ costs $1.99, with no in-app purchases.

### Which has better reviews, 321 or KaruQ?

KaruQ is rated higher. 321 averages 4.2 out of 5 from 32 ratings, while KaruQ averages 4.9 from 63 ratings.

### Do 321 or KaruQ have ads?

Neither 321 nor KaruQ shows ads.

### Which is updated more often, 321 or KaruQ?

321 ships an update every 2 weeks, and KaruQ every 3 months. Most recently, 321 was updated on November 11, 2026 and KaruQ on November 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.*