# Ferroamp vs SACKit Light

The clearest difference is update cadence: Ferroamp at every 9 days against SACKit Light's every 16 months. SACKit Light's advantage is iOS requirement (14.0 vs 16.4). 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.

Ferroamp ships an update every 9 days, SACKit Light every 16 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Ferroamp | SACKit Light |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 16 months |
| Size | 75 MB | 200 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Ferroamp AB](https://appshunter.io/developer/1685154836) | [SACKit ApS](https://appshunter.io/developer/1123424653) |

## What reviewers say

### Ferroamp

[App page](https://appshunter.io/ios/app/ferroamp/id6458734783)

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

**In-app purchases:** none


### SACKit Light

[App page](https://appshunter.io/ios/app/sackit-light/id6744972510)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ferroamp free?

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

### Is SACKit Light free?

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

### Do Ferroamp or SACKit Light have ads?

Neither Ferroamp nor SACKit Light shows ads.

### Which is updated more often, Ferroamp or SACKit Light?

Ferroamp ships an update every 9 days, and SACKit Light every 16 months. Most recently, Ferroamp was updated on October 7, 2026 and SACKit Light on October 9, 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.*