# Screw Jam Master vs Rosca

The clearest difference is in-app purchases: Screw Jam Master at none against Rosca's 1. Screw Jam Master also leads on iOS requirement (15.0 vs 17.0). Rosca's advantage is update cadence (every 3 days vs weekly). On price, ads and device support there is nothing between them.

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

Screw Jam Master ships an update weekly, Rosca every 3 days. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Screw Jam Master | Rosca |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (246 ratings)](https://appshunter.io/ios/app/screw-jam-master-nuts-puzzle/id6677018495/reviews)** | — |
| Number of ratings | **246** | — |
| Positive reviews | 26.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 274 MB | 126 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [燕 肖](https://appshunter.io/developer/1767256079) | [RAFAEL DAVID DEVOS CEREZO](https://appshunter.io/developer/6803223417) |

## What reviewers say

### Screw Jam Master

[App page](https://appshunter.io/ios/app/screw-jam-master-nuts-puzzle/id6677018495)

Engage your intellect in a challenging puzzle game where you strategically unscrew nuts and bolts. Progress through thousands of levels, unlock new models, and experience the excitement of solving intricate screw-based challenges. This game offers a unique way to train your brain and relieve stress.

**Highlights:** Unscrew nuts and bolts to solve puzzles, Thousands of levels to master, Unlock new levels and models, Train your brain, Stress relief, Beautiful color screw models

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

**In-app purchases:** none

**What reviewers like**

- 👍 Fun to pass time
- 👍 Challenging but beatable
- 👍 Peaceful and relaxing
- 👍 Good for destressing
- 👍 Interesting game

**What reviewers complain about**

-  광고 Excessive ads
- ⏳ Long ads
- 😠 Ads interrupt gameplay
- 👎 Ads are intrusive
- 😵 Ads are unavoidable

**Reported bugs**

- Game freezing
- App crashing
- Glitching after refresh
- Ads not closing
- Levels are unwinnable

**Requested features**

- Option to skip ads
- Remove ad banner
- No ads option
- Polish language support


### Rosca

[App page](https://appshunter.io/ios/app/rosca-nut-sort/id6811680789)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $5.99 | one-time |


## Frequently asked questions

### Is Screw Jam Master free?

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

### Is Rosca free?

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

### Do Screw Jam Master or Rosca have ads?

Both Screw Jam Master and Rosca show ads.

### Which is updated more often, Screw Jam Master or Rosca?

Screw Jam Master ships an update weekly, and Rosca every 3 days. Most recently, Screw Jam Master was updated on October 23, 2026 and Rosca on October 29, 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.*