# Echo EFB vs 某航工具箱

The clearest difference is update cadence: 某航工具箱 at every 6 days against Echo EFB's every 3 months. 某航工具箱 also leads on iOS requirement (13.0 vs 16.0). 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.

Echo EFB ships an update every 3 months, 某航工具箱 every 6 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Echo EFB | 某航工具箱 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Size | 19 MB | 31 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [从哲 黄](https://appshunter.io/developer/1895937784) | [岩 刘](https://appshunter.io/developer/1887424217) |

## What reviewers say

### Echo EFB

[App page](https://appshunter.io/ios/app/echo-efb/id6772218047)

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

**In-app purchases:** none


### 某航工具箱

[App page](https://appshunter.io/ios/app/id6778410436)

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

**In-app purchases:** none


## Frequently asked questions

### Is Echo EFB free?

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

### Is 某航工具箱 free?

某航工具箱 is free to download, with no in-app purchases.

### Do Echo EFB or 某航工具箱 have ads?

Neither Echo EFB nor 某航工具箱 shows ads.

### Which is updated more often, Echo EFB or 某航工具箱?

Echo EFB ships an update every 3 months, and 某航工具箱 every 6 days. Most recently, Echo EFB was updated on October 5, 2026 and 某航工具箱 on October 10, 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.*