# Memory Burn vs 15

The clearest difference is price: 15 at Free against Memory Burn's $0.99. 15 also leads on update cadence (every 14 months vs every 33 months) and device support (3 vs 1). Memory Burn's advantage is ads (none vs shown). On in-app purchases there is nothing between them.

15 is free to download; Memory Burn costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Memory Burn ships an update every 33 months, 15 every 14 months. The most recent releases landed on December 4, 2025 and October 26, 2026 respectively.

## The numbers

| Metric | Memory Burn | 15 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 33 months | **Every 14 months** |
| Size | 4 MB | 46 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imagic Place](https://appshunter.io/developer/297428855) | [Chuanming Chang](https://appshunter.io/developer/1001571025) |

## What reviewers say

### Memory Burn

[App page](https://appshunter.io/ios/app/memory-burn/id439577614)

**Features:** macOS Compatibility

**In-app purchases:** none


### 15

[App page](https://appshunter.io/ios/app/15-puzzle-classic/id1105760140)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Memory Burn free?

Memory Burn costs $0.99, with no in-app purchases.

### Is 15 free?

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

### Do Memory Burn or 15 have ads?

15 shows ads; Memory Burn does not.

### Which is updated more often, Memory Burn or 15?

Memory Burn ships an update every 33 months, and 15 every 14 months. Most recently, Memory Burn was updated on December 4, 2025 and 15 on October 26, 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.*