# Stack Knife vs Bridge Master Race Challenge

The clearest difference is in-app purchases: Bridge Master Race Challenge at none against Stack Knife's 1. Stack Knife's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 18 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Stack Knife sells 1 one-off in-app purchase. Bridge Master Race Challenge asks for nothing beyond the download.

Stack Knife ships an update every 3 weeks, Bridge Master Race Challenge every 18 months. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Stack Knife | Bridge Master Race Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 18 months |
| Size | 303 MB | 99 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wavelet Lab Inc.](https://appshunter.io/developer/1072996241) | [Zia Rehman](https://appshunter.io/developer/1560205325) |

## What reviewers say

### Stack Knife

[App page](https://appshunter.io/ios/app/stack-knife/id1453240354)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Bridge Master Race Challenge

[App page](https://appshunter.io/ios/app/bridge-master-race-challenge/id1670307882)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stack Knife free?

Stack Knife is free to download, with in-app purchases available.

### Is Bridge Master Race Challenge free?

Bridge Master Race Challenge is free to download, with no in-app purchases.

### Do Stack Knife or Bridge Master Race Challenge have ads?

Bridge Master Race Challenge shows ads; Stack Knife does not.

### Which is updated more often, Stack Knife or Bridge Master Race Challenge?

Stack Knife ships an update every 3 weeks, and Bridge Master Race Challenge every 18 months. Most recently, Stack Knife was updated on October 5, 2026 and Bridge Master Race Challenge on October 10, 2026.

---

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