# WinQS vs Shell BD

The clearest difference is update cadence: Shell BD at every 3 weeks against WinQS's every 39 months. Shell BD also leads on iOS requirement (15.6 vs 17.6). 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.

WinQS ships an update every 39 months, Shell BD every 3 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | WinQS | Shell BD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 3 weeks** |
| Size | 0 MB | 51 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kyung Sung](https://appshunter.io/developer/934819248) | [RANKS ITT LIMITED](https://appshunter.io/developer/1583945806) |

## What reviewers say

### WinQS

[App page](https://appshunter.io/ios/app/winqs/id1188856434)

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

**In-app purchases:** none


### Shell BD

[App page](https://appshunter.io/ios/app/shell-bd/id6451411506)

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

**In-app purchases:** none


## Frequently asked questions

### Is WinQS free?

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

### Is Shell BD free?

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

### Do WinQS or Shell BD have ads?

Neither WinQS nor Shell BD shows ads.

### Which is updated more often, WinQS or Shell BD?

WinQS ships an update every 39 months, and Shell BD every 3 weeks. Most recently, WinQS was updated on October 26, 2026 and Shell BD on October 25, 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.*