# Screw Nut Puzzle vs Letter Jam!

The clearest difference is in-app purchases: Letter Jam! at none against Screw Nut Puzzle's 1. Screw Nut Puzzle's advantage is ads (none vs shown) and update cadence (every 9 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Screw Nut Puzzle sells 1 one-off in-app purchase. Letter Jam! asks for nothing beyond the download.

Screw Nut Puzzle ships an update every 9 days, Letter Jam! every 3 weeks. The most recent releases landed on November 5, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Screw Nut Puzzle | Letter Jam! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (380 ratings)](https://appshunter.io/ios/app/screw-nut-puzzle/id6448729736/reviews)** | — |
| Number of ratings | **380** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 412 MB | 95 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Babil Studios](https://appshunter.io/developer/947462912) | [Can Hulagu](https://appshunter.io/developer/1629006728) |

## What reviewers say

### Screw Nut Puzzle

[App page](https://appshunter.io/ios/app/screw-nut-puzzle/id6448729736)

Engage in a challenging puzzle experience where you must strategically twist and match colored screws. Manage your limited space to avoid letting incorrect pieces accumulate. Test your logic and spatial reasoning skills to solve intricate levels.

**Highlights:** Screw twisting mechanics, Color matching puzzles, Space management challenges, Logic and spatial reasoning, Progressive difficulty levels

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $4.99 | one-time |


### Letter Jam!

[App page](https://appshunter.io/ios/app/letter-jam/id6477922296)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Screw Nut Puzzle free?

Screw Nut Puzzle is free to download, with in-app purchases available.

### Is Letter Jam! free?

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

### Do Screw Nut Puzzle or Letter Jam! have ads?

Letter Jam! shows ads; Screw Nut Puzzle does not.

### Which is updated more often, Screw Nut Puzzle or Letter Jam!?

Screw Nut Puzzle ships an update every 9 days, and Letter Jam! every 3 weeks. Most recently, Screw Nut Puzzle was updated on November 5, 2026 and Letter Jam! on November 4, 2026.

---

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