# 反转21克 vs 开局五个亿

The clearest difference is price: 反转21克 at Free against 开局五个亿's $0.99. 开局五个亿's advantage is update cadence (every 5 weeks vs every 4 months). On review sentiment, ads, in-app purchases and device support there is nothing between them.

反转21克 is free to download; 开局五个亿 costs $0.99 up front. 反转21克 sells 7 one-off in-app purchases and 开局五个亿 sells 5 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, 开局五个亿 every 5 weeks. The most recent releases landed on October 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 反转21克 | 开局五个亿 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | **30.0% of reviews** | 23.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 2.1 GB | 1.7 GB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Muqiu](https://appshunter.io/developer/1705358554) | [TIANJIN KUNYU TECHNOLOGY CO LTD](https://appshunter.io/developer/1647563391) |

## 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 |


### 开局五个亿

[App page](https://appshunter.io/ios/app/id6744356917)

Embark on an entrepreneurial journey with a substantial starting capital. Build a business empire, make critical investment decisions, and navigate complex relationships with unique characters. Explore branching narratives and discover hidden stories shaped by your choices.

**Highlights:** Business empire building, Investment decision simulation, Interactive character relationships, Branching narrative paths, Hidden stories and Easter eggs, Real-world economics inspiration

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ¥6购买单章 | $0.99 | one-time |
| ¥12购买全部 | $1.99 | one-time |
| ¥18购买全部 | $2.99 | one-time |
| ¥24购买全部 | $2.99 | one-time |
| ¥30购买全部 | $3.99 | 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 开局五个亿 free?

开局五个亿 costs $0.99, and also offers in-app purchases.

### Do 反转21克 or 开局五个亿 have ads?

Neither 反转21克 nor 开局五个亿 shows ads.

### Which is updated more often, 反转21克 or 开局五个亿?

反转21克 ships an update every 4 months, and 开局五个亿 every 5 weeks. Most recently, 反转21克 was updated on October 3, 2026 and 开局五个亿 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.*