# BI Design Wiki vs TIER 3

The clearest difference is update cadence: TIER 3 at every 4 days against BI Design Wiki's every 3 months. BI Design Wiki's advantage is iOS requirement (13.0 vs 15.1). 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, TIER 3 every 4 days. The most recent releases landed on November 12, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BI Design Wiki | TIER 3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 3 MB | 38 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BI Innovation](https://appshunter.io/developer/1303499261) | [Serik Berdalinov](https://appshunter.io/developer/1748579780) |

## What reviewers say

### BI Design Wiki

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

**Features:** macOS Compatibility

**In-app purchases:** none


### TIER 3

[App page](https://appshunter.io/ios/app/tier-3/id6759251861)

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

**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 TIER 3 free?

TIER 3 is free to download, with no in-app purchases.

### Do BI Design Wiki or TIER 3 have ads?

Neither BI Design Wiki nor TIER 3 shows ads.

### Which is updated more often, BI Design Wiki or TIER 3?

BI Design Wiki ships an update every 3 months, and TIER 3 every 4 days. Most recently, BI Design Wiki was updated on November 12, 2026 and TIER 3 on October 31, 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.*