# 反转21克 vs Cellveillance

The clearest difference is review sentiment: 反转21克 at 30% against Cellveillance's 0%. Cellveillance's advantage is update cadence (every 2 days vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 反转21克 sells 7 one-off in-app purchases and Cellveillance sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

反转21克 ships an update every 4 months, Cellveillance every 2 days. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 反转21克 | Cellveillance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/cellveillance/id6742316613/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **30.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 2.1 GB | 1.9 GB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Muqiu](https://appshunter.io/developer/1705358554) | [KarmaGame LTD](https://appshunter.io/developer/1598310517) |

## What reviewers say

### 反转21克

[App page](https://appshunter.io/ios/app/21/id6502326026)

Embark on a thrilling sci-fi detective adventure where your choices shape the narrative. Uncover conspiracies, engage in intense combat, and explore a futuristic world with multiple branching storylines and endings.

**Highlights:** Immersive detective gameplay, Branching storylines and multiple endings, Cinematic visual and audio experience, Professional martial arts choreography, Futuristic sci-fi world, Character interactions and romance options

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 购买小花 | $0.99 | one-time |
| 兑换货币 | $0.99 | one-time |
| 兑换货币 | $1.99 | one-time |
| 兑换货币 | $3.99 | one-time |
| 兑换货币 | $4.99 | one-time |
| 全部章节购买 | $5.99 | one-time |
| 购买小花 | $9.99 | one-time |


### Cellveillance

[App page](https://appshunter.io/ios/app/cellveillance/id6742316613)

Investigate an apartment as a detective, uncovering secrets and gathering information for a mysterious organization. Every interaction reveals hidden truths and challenges your perception of justice in a seemingly ordinary building.

**Highlights:** Investigate apartment residents, Uncover hidden secrets, Gather information for an organization, Explore urban mysteries, Challenging justice definitions

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Flowers | $3.99 | one-time |
| 35 Flowers | $11.99 | one-time |
| 50 flowers | $17.99 | one-time |


## Frequently asked questions

### Is 反转21克 free?

反转21克 is free to download, with in-app purchases available.

### Is Cellveillance free?

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

### Do 反转21克 or Cellveillance have ads?

Neither 反转21克 nor Cellveillance shows ads.

### Which is updated more often, 反转21克 or Cellveillance?

反转21克 ships an update every 4 months, and Cellveillance every 2 days. Most recently, 反转21克 was updated on September 16, 2026 and Cellveillance on September 18, 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.*