# ENGINE SFC vs Knutsen ETA/ETD

The clearest difference is update cadence: ENGINE SFC at daily against Knutsen ETA/ETD's every 8 days. 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.

ENGINE SFC ships an update daily, Knutsen ETA/ETD every 8 days. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ENGINE SFC | Knutsen ETA/ETD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 8 days |
| Size | 6 MB | 27 MB |
| Requires iOS | **15.2** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oleksii Nezhalskyi](https://appshunter.io/developer/1687730603) | [Sergejs Zeigurs](https://appshunter.io/developer/1439812373) |

## What reviewers say

### ENGINE SFC

[App page](https://appshunter.io/ios/app/engine-sfc/id6469806252)

**Features:** macOS Compatibility

**In-app purchases:** none


### Knutsen ETA/ETD

[App page](https://appshunter.io/ios/app/knutsen-etaetd/id6746096925)

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

**In-app purchases:** none


## Frequently asked questions

### Is ENGINE SFC free?

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

### Is Knutsen ETA/ETD free?

Knutsen ETA/ETD is free to download, with no in-app purchases.

### Do ENGINE SFC or Knutsen ETA/ETD have ads?

Neither ENGINE SFC nor Knutsen ETA/ETD shows ads.

### Which is updated more often, ENGINE SFC or Knutsen ETA/ETD?

ENGINE SFC ships an update daily, and Knutsen ETA/ETD every 8 days. Most recently, ENGINE SFC was updated on September 30, 2026 and Knutsen ETA/ETD on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*