# Survive20 vs Brain Out Screw

The clearest difference is review sentiment: Survive20 at 100% against Brain Out Screw's 0%. Survive20 also leads on in-app purchases (none vs 6) and ads (none vs shown). Brain Out Screw's advantage is iOS requirement (15.0 vs 18.5). On price and device support there is nothing between them.

Both are free to download. Brain Out Screw sells 6 one-off in-app purchases. Survive20 asks for nothing beyond the download.

## The numbers

| Metric | Survive20 | Brain Out Screw |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (17 ratings)](https://appshunter.io/ios/app/brain-out-screw-nut-bolt-jam/id6749202157/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 21 MB | 202 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Shu Tanaka](https://appshunter.io/developer/1819985354) | [昕欣 赵](https://appshunter.io/developer/1828548091) |

## What reviewers say

### Survive20

[App page](https://appshunter.io/ios/app/survive20/id6747433992)

Experience a minimalist physics simulation game where you guide a bouncing ball to safety. Avoid the danger zone and survive for the specified time. Enjoy beautiful physics, a refined design, and soothing audio.

**Highlights:** Physics-based ball bouncing, Minimalist aesthetic, Soothing sound design, Game Mode (stage-based), Free Mode (endless relaxation), Intuitive touch controls

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

**In-app purchases:** none


### Brain Out Screw

[App page](https://appshunter.io/ios/app/brain-out-screw-nut-bolt-jam/id6749202157)

Test your logic and patience by unscrewing nuts and bolts in the correct order to drop wooden pieces. This game offers hundreds of handcrafted levels with realistic physics and no time limits, providing a relaxing yet brain-challenging experience.

**Highlights:** Hundreds of handcrafted levels, Realistic screw and bolt physics, No time limits, Offline play supported, Satisfying visual effects, Intuitive controls

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 150 bonus coins | $0.99 | one-time |
| No Ads | $9.99 | one-time |
| Power Pack | $12.99 | one-time |
| Starter Pack | $14.99 | one-time |
| 450 bonus coins | $14.99 | one-time |
| 1000 bonus coins | $19.99 | one-time |


## Frequently asked questions

### Is Survive20 free?

Survive20 is free to download, with no in-app purchases.

### Is Brain Out Screw free?

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

### Do Survive20 or Brain Out Screw have ads?

Brain Out Screw shows ads; Survive20 does not.

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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.*