# Puzex vs One Letter

The clearest difference is iOS requirement: Puzex at 12.0 against One Letter's 14.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Puzex ships an update every 3 months, One Letter every 6 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Puzex | One Letter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/puzex-sorting-balls/id1537364752/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Ad-supported | — |
| Size | 65 MB | 10 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Ha Hoang](https://appshunter.io/developer/1297845154) | [Haskins.io ltd](https://appshunter.io/developer/1519995547) |

## What reviewers say

### Puzex

[App page](https://appshunter.io/ios/app/puzex-sorting-balls/id1537364752)

Engage your mind with a colorful ball sorting puzzle game. Strategically move balls of the same color onto the same tube to solve over 400 challenging levels. Enjoy a relaxing yet stimulating experience with no time limits or penalties.

**Highlights:** Over 400 brain-challenging levels, Unlockable picture themes, Intuitive one-finger controls, No penalty or time limit, Offline play supported, Constantly updated challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### One Letter

[App page](https://appshunter.io/ios/app/one-letter/id1596356582)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Puzex free?

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

### Is One Letter free?

One Letter is free to download, with no in-app purchases.

### Do Puzex or One Letter have ads?

Both Puzex and One Letter show ads.

### Which is updated more often, Puzex or One Letter?

Puzex ships an update every 3 months, and One Letter every 6 weeks. Most recently, Puzex was updated on November 3, 2026 and One Letter on November 7, 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.*