# UFB vs Screw Out Master

The clearest difference is in-app purchases: UFB at none against Screw Out Master's 15. UFB also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Screw Out Master sells 15 one-off in-app purchases. UFB asks for nothing beyond the download.

UFB ships an update weekly, Screw Out Master every 9 days. The most recent releases landed on October 7, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | UFB | Screw Out Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (453 ratings)](https://appshunter.io/ios/app/screw-out-master/id6738110192/reviews)** |
| Number of ratings | — | **453** |
| Positive reviews | — | 18.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 61 MB | 340 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Oleg Maslov](https://appshunter.io/developer/1663043941) | [文奇 陈](https://appshunter.io/developer/1767527328) |

## What reviewers say

### UFB

[App page](https://appshunter.io/ios/app/ufb/id1663043939)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 (15)**

| 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 |
| 6000 coins | $14.99 | one-time |
| 8500 coins | $19.99 | one-time |
| Friends Bundle | $19.99 | one-time |
| Rare Offer | $29.99 | one-time |
| 13000 coins | $29.99 | one-time |
| 22000 coins | $49.99 | 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 UFB free?

UFB 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.

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

Screw Out Master shows ads; UFB does not.

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

UFB ships an update weekly, and Screw Out Master every 9 days. Most recently, UFB was updated on October 7, 2026 and Screw Out Master on October 21, 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.*