# Popi ! vs 树洞有只猫

The clearest difference is in-app purchases: Popi ! at none against 树洞有只猫's 9. 树洞有只猫's advantage is update cadence (every 5 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 树洞有只猫 sells 9 in-app purchases, starting at $4.99 per month. Popi ! asks for nothing beyond the download.

Popi ! ships an update every 3 months, 树洞有只猫 every 5 days. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Popi ! | 树洞有只猫 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id6762756366/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 70 MB | 31 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Cyrille Varin](https://appshunter.io/developer/1797930174) | [Chengdu Baibai Maomao Technology Co., Ltd.](https://appshunter.io/developer/1887172471) |

## What reviewers say

### Popi !

[App page](https://appshunter.io/ios/app/popi/id6749168575)

**Features:** macOS Compatibility

**In-app purchases:** none


### 树洞有只猫

[App page](https://appshunter.io/ios/app/id6762756366)

An anonymous social app where users share thoughts and feelings like messages in a bottle. Connect with strangers through text, images, or voice, and build friendships without revealing identities. Offers a safe space for emotional expression and discovery.

**Highlights:** Anonymous emotional sharing, Message in a bottle style communication, One-on-one private chats, Ephemeral image sharing, Voice message option, Blocking and reporting system

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $4.99 | per month |
| 季度会员 | $14.99 | per 3 months |
| 年度会员 | $49.99 | per year |
| 60积分 | $0.99 | one-time |
| 180积分 | $2.99 | one-time |
| 280积分 | $3.99 | one-time |
| 1580积分 | $19.99 | one-time |
| 2280积分 | $24.99 | one-time |
| 4280积分 | $39.99 | one-time |


## Frequently asked questions

### Is Popi ! free?

Popi ! is free to download, with no in-app purchases.

### Is 树洞有只猫 free?

树洞有只猫 is free to download, with in-app purchases available.

### Do Popi ! or 树洞有只猫 have ads?

Neither Popi ! nor 树洞有只猫 shows ads.

### Which is updated more often, Popi ! or 树洞有只猫?

Popi ! ships an update every 3 months, and 树洞有只猫 every 5 days. Most recently, Popi ! was updated on October 8, 2026 and 树洞有只猫 on October 9, 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.*