# Ferroamp vs Phasebox

The clearest difference is update cadence: Ferroamp at every 9 days against Phasebox's every 14 months. Phasebox's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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, Phasebox every 14 months. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Ferroamp | Phasebox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 14 months |
| Size | 75 MB | 23 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ferroamp AB](https://appshunter.io/developer/1685154836) | [PhaseBox AB](https://appshunter.io/developer/1716005445) |

## What reviewers say

### Ferroamp

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

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

**In-app purchases:** none


### Phasebox

[App page](https://appshunter.io/ios/app/phasebox/id6471823362)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ferroamp free?

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

### Is Phasebox free?

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

### Do Ferroamp or Phasebox have ads?

Neither Ferroamp nor Phasebox shows ads.

### Which is updated more often, Ferroamp or Phasebox?

Ferroamp ships an update every 9 days, and Phasebox every 14 months. Most recently, Ferroamp was updated on October 7, 2026 and Phasebox on September 29, 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.*