# Big 2! vs 誰是臥底

The clearest difference is in-app purchases: Big 2! at none against 誰是臥底's 1. Big 2! also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 誰是臥底 sells 1 in-app purchase, starting at $0.99 per month. Big 2! asks for nothing beyond the download.

Big 2! ships an update every 6 weeks, 誰是臥底 every 5 weeks. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Big 2! | 誰是臥底 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (719 ratings)](https://appshunter.io/ios/app/big-2/id863356939/reviews)** | — |
| Number of ratings | **719** | — |
| Positive reviews | 32.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 21 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JJPlay Inc.](https://appshunter.io/developer/863356942) | [LiangYu Ko](https://appshunter.io/developer/1758015388) |

## What reviewers say

### Big 2!

[App page](https://appshunter.io/ios/app/big-2/id863356939)

Experience a classic card game with online and offline multiplayer modes. Compete against AI or friends, with support for various regional rules. Enjoy a free, ad-supported experience with customizable gameplay.

**Highlights:** Online multiplayer with matchmaking, Play with Facebook friends, Offline play against AI, Supports multiple regional rules (Taiwan, Hong Kong, etc.), Completely free to play, Crystal clear graphics

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

**In-app purchases:** none

**What reviewers like**

- 🎮 Great game
- 🕹️ Addictive gameplay
- 🎨 Simple and clean UI
- 🕰️ Quick and easy to play

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- 🚫 Intrusive and unskippable ads
- 🔒 Facebook login issues
- 🔢 Unfair scoring system
- 🤖 Unbalanced AI difficulty

**Reported bugs**

- Game freezes when new players join
- Losing points for no reason
- Ads that cannot be closed
- Multiplayer mode not working
- Incorrect card ranking and suit order

**Requested features**

- Ability to play with friends
- Option to disable ads
- Customizable difficulty settings
- Improved card distribution and shuffling
- Voice chat or in-game communication


### 誰是臥底

[App page](https://appshunter.io/ios/app/id6553973564)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 找出臥底 Pro | $0.99 | per month |


## Frequently asked questions

### Is Big 2! free?

Big 2! is free to download, with no in-app purchases.

### Is 誰是臥底 free?

誰是臥底 is free to download, with in-app purchases available.

### Do Big 2! or 誰是臥底 have ads?

Both Big 2! and 誰是臥底 show ads.

### Which is updated more often, Big 2! or 誰是臥底?

Big 2! ships an update every 6 weeks, and 誰是臥底 every 5 weeks. Most recently, Big 2! was updated on October 20, 2026 and 誰是臥底 on October 16, 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.*