# IID pro vs EFS

The clearest difference is update cadence: EFS at weekly against IID pro's every 38 months. IID pro's advantage is iOS requirement (8.0 vs 13.0). 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.

IID pro ships an update every 38 months, EFS weekly. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | IID pro | EFS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Weekly** |
| Size | 111 MB | 33 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Kariman Raouf](https://appshunter.io/developer/1584654639) | [Software Evolution](https://appshunter.io/developer/1488457320) |

## What reviewers say

### IID pro

[App page](https://appshunter.io/ios/app/iid-pro/id1584654637)

**Features:** macOS Compatibility

**In-app purchases:** none


### EFS

[App page](https://appshunter.io/ios/app/efs-misr/id6777506399)

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

**In-app purchases:** none


## Frequently asked questions

### Is IID pro free?

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

### Is EFS free?

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

### Do IID pro or EFS have ads?

Neither IID pro nor EFS shows ads.

### Which is updated more often, IID pro or EFS?

IID pro ships an update every 38 months, and EFS weekly. Most recently, IID pro was updated on September 8, 2026 and EFS on September 15, 2026.

---

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