# Sound and Memory vs Slitherlink

The clearest difference is in-app purchases: Sound and Memory at none against Slitherlink's 1. Sound and Memory also leads on iOS requirement (9.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Slitherlink sells 1 one-off in-app purchase. Sound and Memory asks for nothing beyond the download.

## The numbers

| Metric | Sound and Memory | Slitherlink |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 18 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Murat EKSUR](https://appshunter.io/developer/1091792543) | [DAN URBANEK](https://appshunter.io/developer/1875347262) |

## What reviewers say

### Sound and Memory

[App page](https://appshunter.io/ios/app/sound-and-memory/id1253726294)

**Features:** macOS Compatibility

**In-app purchases:** none


### Slitherlink

[App page](https://appshunter.io/ios/app/slitherlink-loop-puzzle/id6765857599)

Solve logic puzzles by drawing a single, continuous loop based on number clues. Explore over 1,200 puzzles, including daily challenges and expert levels. Offers offline play, customizable themes, and progress tracking.

**Highlights:** Draw a continuous loop, Follow number clues, 1,200+ puzzles, Daily challenges, Offline play, Light and dark themes, Progress tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Slitherlink Premium Unlock | $3.00 | one-time |


## Frequently asked questions

### Is Sound and Memory free?

Sound and Memory is free to download, with no in-app purchases.

### Is Slitherlink free?

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

### Do Sound and Memory or Slitherlink have ads?

Neither Sound and Memory nor Slitherlink shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*