# Screw Blocks vs JellySling

The clearest difference is device support: Screw Blocks at 3 against JellySling's 1. Screw Blocks also leads on iOS requirement (12.0 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Screw Blocks sells 7 one-off in-app purchases and JellySling sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Screw Blocks ships an update weekly, JellySling every 4 days. The most recent releases landed on October 21, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Screw Blocks | JellySling |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (16 ratings)](https://appshunter.io/ios/app/screw-blocks/id6737030236/reviews)** | — |
| Number of ratings | **16** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 313 MB | 24 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Mehmet Fatih Sahin](https://appshunter.io/developer/1700697055) | [Ferkan Sari](https://appshunter.io/developer/1547086877) |

## What reviewers say

### Screw Blocks

[App page](https://appshunter.io/ios/app/screw-blocks/id6737030236)

A strategic puzzle game where players drag and fit blocks to unscrew bolts. Match screw colors and consider screw layers to solve hundreds of unique boards. Offers challenging levels with real-time physics and chain reactions.

**Highlights:** Hundreds of unique puzzle boards, Challenging levels (Medium, Hard, Expert), Multilayered design with real-time physics, Block, pin, and jam game mechanics, Mesmerizing chain reactions

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Coins | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |
| 2500 Coins | $2.99 | one-time |
| Starter Pack | $5.99 | one-time |
| 10000 Coins | $5.99 | one-time |
| Mega Pack | $8.99 | one-time |
| 20000 Coins | $8.99 | one-time |


### JellySling

[App page](https://appshunter.io/ios/app/jellysling-physics-puzzle/id6810726427)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Stars | $0.99 | one-time |
| 90 Stars | $2.99 | one-time |
| 180 Stars | $4.99 | one-time |
| Jelly Sling Pro | $5.99 | one-time |
| 1,200 Stars | $19.99 | one-time |


## Frequently asked questions

### Is Screw Blocks free?

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

### Is JellySling free?

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

### Do Screw Blocks or JellySling have ads?

Both Screw Blocks and JellySling show ads.

### Which is updated more often, Screw Blocks or JellySling?

Screw Blocks ships an update weekly, and JellySling every 4 days. Most recently, Screw Blocks was updated on October 21, 2026 and JellySling on October 26, 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.*