# SkyHighStack vs Arc Spiral

The clearest difference is update cadence: SkyHighStack at daily against Arc Spiral's every 8 months. 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.

SkyHighStack ships an update daily, Arc Spiral every 8 months. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | SkyHighStack | Arc Spiral |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 8 months |
| Size | 5 MB | 135 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Penn Curtis](https://appshunter.io/developer/1772733523) | [Infinite Crayfish LLC](https://appshunter.io/developer/1567825716) |

## What reviewers say

### SkyHighStack

[App page](https://appshunter.io/ios/app/skyhighstack/id6741442802)

**Features:** macOS Compatibility

**In-app purchases:** none


### Arc Spiral

[App page](https://appshunter.io/ios/app/arc-spiral/id6746075327)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SkyHighStack free?

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

### Is Arc Spiral free?

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

### Do SkyHighStack or Arc Spiral have ads?

Neither SkyHighStack nor Arc Spiral shows ads.

### Which is updated more often, SkyHighStack or Arc Spiral?

SkyHighStack ships an update daily, and Arc Spiral every 8 months. Most recently, SkyHighStack was updated on September 21, 2026 and Arc Spiral on September 13, 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.*