# Stack Tap Disco Star vs Sci

The clearest difference is update cadence: Stack Tap Disco Star at every 8 days against Sci's every 58 months. Stack Tap Disco Star also leads on iOS requirement (9.1 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Stack Tap Disco Star ships an update every 8 days, Sci every 58 months. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Stack Tap Disco Star | Sci |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 58 months |
| Size | 126 MB | 41 MB |
| Requires iOS | **9.1** | 11.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 12+ |
| Developer | [Aeria Canada Studio Inc.](https://appshunter.io/developer/1383888222) | [Marek Skreko](https://appshunter.io/developer/1558127762) |

## What reviewers say

### Stack Tap Disco Star

[App page](https://appshunter.io/ios/app/stack-tap-disco-star/id1349884319)

**Features:** Vision Pro support

**In-app purchases:** none


### Sci

[App page](https://appshunter.io/ios/app/sci-fi-platformer/id1558127760)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stack Tap Disco Star free?

Stack Tap Disco Star is free to download, with no in-app purchases.

### Is Sci free?

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

### Do Stack Tap Disco Star or Sci have ads?

Neither Stack Tap Disco Star nor Sci shows ads.

### Which is updated more often, Stack Tap Disco Star or Sci?

Stack Tap Disco Star ships an update every 8 days, and Sci every 58 months. Most recently, Stack Tap Disco Star was updated on October 4, 2026 and Sci on October 7, 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.*