# e vs Ferroamp Installer

The clearest difference is update cadence: Ferroamp Installer at fortnightly against e's every 3 months. e's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.

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

e ships an update every 3 months, Ferroamp Installer fortnightly. The most recent releases landed on September 19, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | e | Ferroamp Installer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 39 MB | 77 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fagerhults Belysning AB](https://appshunter.io/developer/428487342) | [Ferroamp AB](https://appshunter.io/developer/1685154836) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-sense-flex/id6445810378)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ferroamp Installer

[App page](https://appshunter.io/ios/app/ferroamp-installer/id6448623957)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is e free?

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

### Is Ferroamp Installer free?

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

### Do e or Ferroamp Installer have ads?

Neither e nor Ferroamp Installer shows ads.

### Which is updated more often, e or Ferroamp Installer?

e ships an update every 3 months, and Ferroamp Installer fortnightly. Most recently, e was updated on September 19, 2026 and Ferroamp Installer on October 1, 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.*