# 13 vs Memorize

The clearest difference is in-app purchases: Memorize at none against 13's 1. Memorize also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 11 months). 13's advantage is iOS requirement (12.6 vs 15.1). On price and device support there is nothing between them.

Both are free to download. 13 sells 1 one-off in-app purchase. Memorize asks for nothing beyond the download.

13 ships an update every 11 months, Memorize every 2 weeks. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 13 | Memorize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (53 ratings)](https://appshunter.io/ios/app/13-the-game/id1458483490/reviews)** | — |
| Number of ratings | **53** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 72 MB |
| Requires iOS | **12.6** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [PLAYTOUCH](https://appshunter.io/developer/608330754) | [Guillaume Kervran](https://appshunter.io/developer/1847371100) |

## What reviewers say

### 13

[App page](https://appshunter.io/ios/app/13-the-game/id1458483490)

A simple yet challenging puzzle game where players merge adjacent similar boxes to reach the number 13. It's easy to learn but difficult to master, with only a small percentage of players achieving the ultimate goal.

**Highlights:** Merge adjacent similar boxes, Goal: Create a box with the number 13, Simple gameplay mechanics, Challenging difficulty, Puzzle-based

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all ADS from the game | $1.99 | one-time |


### Memorize

[App page](https://appshunter.io/ios/app/memorize-memory-training/id6754248466)

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

**In-app purchases:** none


## Frequently asked questions

### Is 13 free?

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

### Is Memorize free?

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

### Do 13 or Memorize have ads?

13 shows ads; Memorize does not.

### Which is updated more often, 13 or Memorize?

13 ships an update every 11 months, and Memorize every 2 weeks. Most recently, 13 was updated on October 21, 2026 and Memorize on October 10, 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.*