# 碳聚惠 vs 秘密

The clearest difference is in-app purchases: 碳聚惠 at none against 秘密's 10. 碳聚惠 also leads on ads (none vs shown) and update cadence (fortnightly vs every 5 weeks). On price and device support there is nothing between them.

Both are free to download. 秘密 sells 10 in-app purchases, starting at $2.99 per 7 days. 碳聚惠 asks for nothing beyond the download.

碳聚惠 ships an update fortnightly, 秘密 every 5 weeks. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 碳聚惠 | 秘密 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/id6447301958/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 94 MB | 74 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Carbon Bill (Shandong) New Energy Technology Co., Ltd](https://appshunter.io/developer/1677285715) | [杭州欣杆科技有限公司](https://appshunter.io/developer/1614132174) |

## What reviewers say

### 碳聚惠

[App page](https://appshunter.io/ios/app/id6446310710)

**In-app purchases:** none


### 秘密

[App page](https://appshunter.io/ios/app/id6447301958)

This app offers a private space for journaling thoughts and emotions with text, images, or voice. It also provides an anonymous platform to share secrets and connect with like-minded individuals nearby for social interaction and friendship.

**Highlights:** Private journaling with text, image, and voice notes, Anonymous secret sharing and feedback, Local user discovery based on interests, Personalized profiles to showcase individuality, Advanced privacy and security measures

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 旅尤周会员 | $2.99 | per 7 days |
| 旅尤季度会员 | $12.99 | per 3 months |
| 旅尤半年会员 | $24.99 | per 6 months |
| 旅尤年会员 | $39.99 | per year |
| 6元42积分 | $0.99 | one-time |
| 28元210积分 | $3.99 | one-time |
| 58元420积分 | $7.99 | one-time |
| 98元686积分 | $14.99 | one-time |
| 198元1386积分 | $29.99 | one-time |
| 298元2898积分 | $39.99 | one-time |


## Frequently asked questions

### Is 碳聚惠 free?

碳聚惠 is free to download, with no in-app purchases.

### Is 秘密 free?

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

### Do 碳聚惠 or 秘密 have ads?

秘密 shows ads; 碳聚惠 does not.

### Which is updated more often, 碳聚惠 or 秘密?

碳聚惠 ships an update fortnightly, and 秘密 every 5 weeks. Most recently, 碳聚惠 was updated on October 17, 2026 and 秘密 on October 24, 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.*