# Screw Jam Master vs Screw Out Master

The clearest difference is in-app purchases: Screw Jam Master at none against Screw Out Master's 10. Screw Jam Master also leads on review sentiment (27% vs 18%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Screw Out Master sells 10 one-off in-app purchases. Screw Jam Master asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Screw Jam Master against 4.7 for Screw Out Master. Both are backed by a comparable volume of ratings — 246 and 452 respectively. Written reviews are what separate them: 27% of Screw Jam Master's written reviews are positive against 18% of Screw Out Master's.

Screw Jam Master ships an update weekly, Screw Out Master every 9 days. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Screw Jam Master | Screw Out Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (246 ratings)](https://appshunter.io/ios/app/screw-jam-master-nuts-puzzle/id6677018495/reviews)** | [4.7 (452 ratings)](https://appshunter.io/ios/app/screw-out-master/id6738110192/reviews) |
| Number of ratings | 246 | **452** |
| Positive reviews | **26.7% of reviews** | 18.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 274 MB | 340 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [燕 肖](https://appshunter.io/developer/1767256079) | [文奇 陈](https://appshunter.io/developer/1767527328) |

## 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


### Screw Out Master

[App page](https://appshunter.io/ios/app/screw-out-master/id6738110192)

Engage in a captivating puzzle game where you unscrew and twist to solve intricate challenges. Progress through a fascinating storyline, renovate and decorate spaces, and train your brain as you become a master screwdriver. Enjoy a user-friendly interface and exciting rewards.

**Highlights:** Unscrew and twist puzzles, Captivating storyline, Renovate and decorate spaces, Brain-training challenges, User-friendly interface, Unlock exciting rewards

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $1.99 | one-time |
| 1000 coins | $2.99 | one-time |
| Limited Pack | $2.99 | one-time |
| Pop Bundle | $4.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Chance Offer | $7.99 | one-time |
| 3000 coins | $7.99 | one-time |
| Lucky Bundle | $9.99 | one-time |
| Limited Pack | $14.99 | one-time |
| Friends Bundle | $19.99 | one-time |

**What reviewers like**

- 👍 Fun and engaging gameplay
- 💡 Helps the mind think

**What reviewers complain about**

- 🚫 Too many ads
- 🚫 Difficult to progress without spending money
- 🚫 Lack of privacy and tracking concerns

**Reported bugs**

- Ads cause loss of progress
- Levels are too difficult

**Requested features**

- More story-based content
- iPad version
- Ability to spend coins


## Frequently asked questions

### Is Screw Jam Master free?

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

### Is Screw Out Master free?

Screw Out Master is free to download, with in-app purchases available.

### Which has better reviews, Screw Jam Master or Screw Out Master?

Screw Jam Master is rated higher. Screw Jam Master averages 4.8 out of 5 from 246 ratings, while Screw Out Master averages 4.7 from 452 ratings.

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

Both Screw Jam Master and Screw Out Master show ads.

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

Screw Jam Master ships an update weekly, and Screw Out Master every 9 days. Most recently, Screw Jam Master was updated on October 30, 2026 and Screw Out Master on November 4, 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.*