# 誰是臥底 vs InBetween Gate

The clearest difference is update cadence: InBetween Gate at weekly against 誰是臥底's every 5 weeks. 誰是臥底's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases 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 and InBetween Gate sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

誰是臥底 ships an update every 5 weeks, InBetween Gate weekly. The most recent releases landed on October 1, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 誰是臥底 | InBetween Gate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 21 MB | 24 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [LiangYu Ko](https://appshunter.io/developer/1758015388) | [PU YEN LIN](https://appshunter.io/developer/954160384) |

## What reviewers say

### 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 |


### InBetween Gate

[App page](https://appshunter.io/ios/app/inbetween-gate/id6753310141)

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $5.99 | one-time |


## Frequently asked questions

### Is 誰是臥底 free?

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

### Is InBetween Gate free?

InBetween Gate is free to download, with in-app purchases available.

### Do 誰是臥底 or InBetween Gate have ads?

Both 誰是臥底 and InBetween Gate show ads.

### Which is updated more often, 誰是臥底 or InBetween Gate?

誰是臥底 ships an update every 5 weeks, and InBetween Gate weekly. Most recently, 誰是臥底 was updated on October 1, 2026 and InBetween Gate on October 13, 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.*