# Screw Nut Puzzle vs Dot Jam

The clearest difference is review sentiment: Dot Jam at 100% against Screw Nut Puzzle's 50%. Dot Jam also leads on in-app purchases (none vs 1). Screw Nut Puzzle's advantage is rating (4.6 vs 4.0) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

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

Screw Nut Puzzle holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Screw Nut Puzzle has 377 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of Screw Nut Puzzle's written reviews are positive against 100% of Dot Jam's, so the app with the better star average is not the one people write more warmly about.

Screw Nut Puzzle ships an update every 9 days, Dot Jam every 3 weeks. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Screw Nut Puzzle | Dot Jam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (377 ratings)](https://appshunter.io/ios/app/screw-nut-puzzle/id6448729736/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/dot-jam/id6477155633/reviews) |
| Number of ratings | **377** | 2 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 412 MB | 99 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Babil Studios](https://appshunter.io/developer/947462912) | [Playnoob](https://appshunter.io/developer/1627222754) |

## 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

**In-app purchases (1)**

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


### Dot Jam

[App page](https://appshunter.io/ios/app/dot-jam/id6477155633)

A casual puzzle game where players tap colored balls to fill corresponding holes. The goal is to complete levels by correctly sorting all the balls by color.

**Highlights:** Tap and place colored balls, Fill holes with correct colors, Complete challenging levels, Intuitive gameplay

**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 Dot Jam free?

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

### Which has better reviews, Screw Nut Puzzle or Dot Jam?

Screw Nut Puzzle is rated higher. Screw Nut Puzzle averages 4.6 out of 5 from 377 ratings, while Dot Jam averages 4.0 from 2 ratings.

### Do Screw Nut Puzzle or Dot Jam have ads?

Dot Jam shows ads; Screw Nut Puzzle does not.

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

Screw Nut Puzzle ships an update every 9 days, and Dot Jam every 3 weeks. Most recently, Screw Nut Puzzle was updated on October 14, 2026 and Dot Jam on October 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.*