# Letter Stream vs Gem Flow Puzzle

The clearest difference is in-app purchases: Letter Stream at none against Gem Flow Puzzle's 1. Letter Stream also leads on ads (none vs shown). Gem Flow Puzzle's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Gem Flow Puzzle sells 1 one-off in-app purchase. Letter Stream asks for nothing beyond the download.

## The numbers

| Metric | Letter Stream | Gem Flow Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Size | 6 MB | 175 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andy Otto](https://appshunter.io/developer/1870819227) | [Hot Yeti Studio OU](https://appshunter.io/developer/1643923250) |

## What reviewers say

### Letter Stream

[App page](https://appshunter.io/ios/app/letter-stream/id6763931813)

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

**In-app purchases:** none


### Gem Flow Puzzle

[App page](https://appshunter.io/ios/app/gem-flow-puzzle/id6770515022)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |


## Frequently asked questions

### Is Letter Stream free?

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

### Is Gem Flow Puzzle free?

Gem Flow Puzzle is free to download, with in-app purchases available.

### Do Letter Stream or Gem Flow Puzzle have ads?

Gem Flow Puzzle shows ads; Letter Stream does not.

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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.*