# Flow Fill vs Retro Memory Puzzle

The clearest difference is ads: Flow Fill at none against Retro Memory Puzzle's shown. Flow Fill also leads on iOS requirement (13.0 vs 15.6). Retro Memory Puzzle's advantage is update cadence (weekly vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

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

Flow Fill ships an update every 3 weeks, Retro Memory Puzzle weekly. Both last shipped on November 5, 2026.

## The numbers

| Metric | Flow Fill | Retro Memory Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 61 MB | 128 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FGTP Labs](https://appshunter.io/developer/1849326000) | [Duong Pham Son](https://appshunter.io/developer/1297138564) |

## What reviewers say

### Flow Fill

[App page](https://appshunter.io/ios/app/flow-fill-color-path-puzzle/id6756607714)

**Features:** macOS Compatibility

**In-app purchases:** none


### Retro Memory Puzzle

[App page](https://appshunter.io/ios/app/retro-memory-puzzle/id6774979445)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flow Fill free?

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

### Is Retro Memory Puzzle free?

Retro Memory Puzzle is free to download, with no in-app purchases.

### Do Flow Fill or Retro Memory Puzzle have ads?

Retro Memory Puzzle shows ads; Flow Fill does not.

### Which is updated more often, Flow Fill or Retro Memory Puzzle?

Flow Fill ships an update every 3 weeks, and Retro Memory Puzzle weekly. Most recently, Flow Fill was updated on November 5, 2026 and Retro Memory Puzzle on November 5, 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.*