# Row Fish Row vs Derin

The clearest difference is in-app purchases: Derin at none against Row Fish Row's 10. Derin also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (15.0 vs 18.0). Row Fish Row's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Row Fish Row sells 10 one-off in-app purchases. Derin asks for nothing beyond the download.

Row Fish Row ships an update every 2 months, Derin fortnightly. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Row Fish Row | Derin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 78 MB | 16 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEHMET CELIK](https://appshunter.io/developer/1838202252) | [Kidvo](https://appshunter.io/developer/1639323475) |

## What reviewers say

### Row Fish Row

[App page](https://appshunter.io/ios/app/row-fish-row/id6784793798)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $0.99 | one-time |
| Handful of Pearls | $0.99 | one-time |
| Pocketful of Starfish | $0.99 | one-time |
| Night Glow Pack | $4.99 | one-time |
| Double Pearls | $4.99 | one-time |
| Pouch of Pearls | $4.99 | one-time |
| Bucket of Starfish | $4.99 | one-time |
| Chest of Pearls | $9.99 | one-time |
| Starfish Reef | $9.99 | one-time |
| Pearl Hoard | $19.99 | one-time |


### Derin

[App page](https://appshunter.io/ios/app/derin-deep-dive/id6818666353)

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

**In-app purchases:** none


## Frequently asked questions

### Is Row Fish Row free?

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

### Is Derin free?

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

### Do Row Fish Row or Derin have ads?

Derin shows ads; Row Fish Row does not.

### Which is updated more often, Row Fish Row or Derin?

Row Fish Row ships an update every 2 months, and Derin fortnightly. Most recently, Row Fish Row was updated on November 10, 2026 and Derin on November 6, 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.*