# BI Design Wiki vs Fast Open User

The clearest difference is update cadence: BI Design Wiki at every 3 months against Fast Open User's every 23 months. BI Design Wiki also leads on iOS requirement (13.0 vs 15.0). 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.

BI Design Wiki ships an update every 3 months, Fast Open User every 23 months. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | BI Design Wiki | Fast Open User |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 23 months |
| Size | 3 MB | 18 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BI Innovation](https://appshunter.io/developer/1303499261) | [ELFOK TOO](https://appshunter.io/developer/1704972671) |

## What reviewers say

### BI Design Wiki

[App page](https://appshunter.io/ios/app/bi-design-wiki/id6446160939)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fast Open User

[App page](https://appshunter.io/ios/app/fast-open-user/id6449151912)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BI Design Wiki free?

BI Design Wiki is free to download, with no in-app purchases.

### Is Fast Open User free?

Fast Open User is free to download, with no in-app purchases.

### Do BI Design Wiki or Fast Open User have ads?

Neither BI Design Wiki nor Fast Open User shows ads.

### Which is updated more often, BI Design Wiki or Fast Open User?

BI Design Wiki ships an update every 3 months, and Fast Open User every 23 months. Most recently, BI Design Wiki was updated on October 9, 2026 and Fast Open User on October 19, 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.*