# Screw Sort 3D vs Block Stack

The clearest difference is iOS requirement: Screw Sort 3D at 15.0 against Block Stack's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Screw Sort 3D sells 11 one-off in-app purchases and Block Stack sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Screw Sort 3D ships an update every 9 days, Block Stack weekly. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Screw Sort 3D | Block Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/block-stack-tower-builder/id6771109087/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 247 MB | 65 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Nauman Safdar](https://appshunter.io/developer/1782316833) | [Michal Babicz](https://appshunter.io/developer/1865923848) |

## What reviewers say

### Screw Sort 3D

[App page](https://appshunter.io/ios/app/screw-sort-3d-nuts-and-bolts/id6751273310)

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Magnets | $1.99 | one-time |
| 3 Brooms | $1.99 | one-time |
| Drills 03 + Magnets 03 + Brooms 03 | $2.99 | one-time |
| 5 Brroms | $2.99 | one-time |
| 5 Magnets | $2.99 | one-time |
| 10 Brooms | $3.99 | one-time |
| 10 Magnets | $3.99 | one-time |
| ¢5000+3x Drill+ 3x Magnet+ 3x Broom | $4.99 | one-time |
| Remove Interstitial Ads | $5.99 | one-time |
| 5k Game Coins + No Ads | $8.99 | one-time |
| Special ¢5000 + 3xAllTools + No Ads | $9.99 | one-time |


### Block Stack

[App page](https://appshunter.io/ios/app/block-stack-tower-builder/id6771109087)

Tap to stack blocks and build the tallest tower possible. Achieve perfect hits for multipliers and unlock new visual themes. Complete missions and daily streaks to earn rewards and climb the leaderboards.

**Highlights:** One-tap block stacking gameplay, Multiplier system up to x25, 12+ unlockable visual themes, Perks to modify gameplay, Daily missions and streaks, Game Center leaderboards

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Coins | $0.99 | one-time |
| 1,500 Coins | $1.99 | one-time |
| 5,000 Coins | $7.99 | one-time |
| 12,000 Coins | $14.99 | one-time |


## Frequently asked questions

### Is Screw Sort 3D free?

Screw Sort 3D is free to download, with in-app purchases available.

### Is Block Stack free?

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

### Do Screw Sort 3D or Block Stack have ads?

Both Screw Sort 3D and Block Stack show ads.

### Which is updated more often, Screw Sort 3D or Block Stack?

Screw Sort 3D ships an update every 9 days, and Block Stack weekly. Most recently, Screw Sort 3D was updated on October 6, 2026 and Block Stack on October 2, 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.*