# Reverse Audio Challenge vs 空扇区

The clearest difference is rating: Reverse Audio Challenge at 4.5 against 空扇区's 2.6. Reverse Audio Challenge also leads on review sentiment (61% vs 35%) and ratings volume (173 vs 5). 空扇区's advantage is ads (none vs shown). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Reverse Audio Challenge sells 4 in-app purchases, starting at $0.49 per year and 空扇区 sells 18 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Reverse Audio Challenge holds the better App Store score, 4.5 against 2.6. That said, the two scores are not equally well evidenced: Reverse Audio Challenge has 173 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 61% of Reverse Audio Challenge's written reviews are positive against 35% of 空扇区's.

Reverse Audio Challenge ships an update every 2 weeks, 空扇区 every 3 weeks. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Reverse Audio Challenge | 空扇区 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (173 ratings)](https://appshunter.io/ios/app/reverse-audio-challenge/id1486564811/reviews)** | [2.6 (5 ratings)](https://appshunter.io/ios/app/id1663498485/reviews) |
| Number of ratings | **173** | 5 |
| Positive reviews | **60.6% of reviews** | 34.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 18 MB |
| Requires iOS | **15** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Hangzhou Onedium Technology Co., Ltd.](https://appshunter.io/developer/1395700698) | [雨童 陈](https://appshunter.io/developer/1056009364) |

## What reviewers say

### Reverse Audio Challenge

[App page](https://appshunter.io/ios/app/reverse-audio-challenge/id1486564811)

Record your voice, reverse it, and challenge friends to guess the original message. Explore fun sound effects, reverse text, and even play your favorite songs backward. A popular social game for endless entertainment.

**Highlights:** Record and reverse voice messages, Guess reversed messages, Mimic and re-reverse voices, Fun sound effects, Reverse text messages, Hot Words module for ideas, Music reversal

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁应用内全部功能 | $0.49 | per year |
| 解锁应用内全部功能 | $1.99 | per year |
| 升级为 PRO | $0.99 | one-time |
| 升级为 PRO | $2.99 | one-time |


### 空扇区

[App page](https://appshunter.io/ios/app/id1663498485)

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $3.99 | per month |
| 扇世界会员连续包月 | $4.99 | per month |
| 连续包季 | $9.99 | per 3 months |
| 连续包年 | $39.99 | per year |
| 扇世界会员连续包年 | $59.99 | per year |
| 36空石 | $0.99 | one-time |
| 72空石 | $1.99 | one-time |
| Creator Membership for 1 month | $3.99 | one-time |
| 180空石 | $3.99 | one-time |
| 扇世界月卡 | $4.99 | one-time |
| 360空石 | $8.99 | one-time |
| live2d功能激活 | $9.99 | one-time |
| Live2D功能激活 | $9.99 | one-time |
| 高级创作会员季卡 | $9.99 | one-time |
| 768空石 | $19.99 | one-time |
| 高级创作会员年卡 | $39.99 | one-time |
| 扇世界年卡 | $59.99 | one-time |
| 3888空石 | $99.99 | one-time |


## Frequently asked questions

### Is Reverse Audio Challenge free?

Reverse Audio Challenge is free to download, with in-app purchases available.

### Is 空扇区 free?

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

### Which has better reviews, Reverse Audio Challenge or 空扇区?

Reverse Audio Challenge is rated higher. Reverse Audio Challenge averages 4.5 out of 5 from 173 ratings, while 空扇区 averages 2.6 from 5 ratings.

### Do Reverse Audio Challenge or 空扇区 have ads?

Reverse Audio Challenge shows ads; 空扇区 does not.

### Which is updated more often, Reverse Audio Challenge or 空扇区?

Reverse Audio Challenge ships an update every 2 weeks, and 空扇区 every 3 weeks. Most recently, Reverse Audio Challenge was updated on October 13, 2026 and 空扇区 on October 12, 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.*