# Sub vs 4i星球

The clearest difference is rating: Sub at 4.6 against 4i星球's 3.4. Sub also leads on ads (none vs shown) and ratings volume (155 vs 21). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Sub sells 10 in-app purchases, starting at $1.99 per 7 days and 4i星球 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Sub holds the better App Store score, 4.6 against 3.4. That said, the two scores are not equally well evidenced: Sub has 155 ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 91% of Sub's written reviews are positive against 81% of 4i星球's.

Sub ships an update every 2 weeks, 4i星球 every 3 weeks. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Sub | 4i星球 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (155 ratings)](https://appshunter.io/ios/app/sub/id1543526849/reviews)** | [3.4 (21 ratings)](https://appshunter.io/ios/app/4i/id6740013320/reviews) |
| Number of ratings | **155** | 21 |
| Positive reviews | **90.7% of reviews** | 81.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 235 MB | 298 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Uni Dating App Ltd.](https://appshunter.io/developer/1647775425) | [Wuhan Yuzhou Technology Co., Ltd](https://appshunter.io/developer/1787977541) |

## What reviewers say

### Sub

[App page](https://appshunter.io/ios/app/sub/id1543526849)

A platform for finding like-minded individuals within subcultures. It emphasizes authentic self-expression and offers robust privacy features to create a secure and pure social circle. Discover diverse interests and connect with real users through verification.

**Highlights:** Subculture matching, Privacy settings, Anti-screenshot protection, Anti-harassment features, Pure social circle, User verification, Knowledge sharing

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 少数派字母圈一周会员 | $1.99 | per 7 days |
| 少数派字母圈一个月会员 | $4.99 | per month |
| 少数派字母圈三个月会员 | $12.99 | per 3 months |
| 少数派字母圈六个月会员 | $19.99 | per 6 months |
| Sub字母圈极乐园金币一级 | $0.99 | one-time |
| Sub字母圈极乐园金币二级 | $0.99 | one-time |
| Sub字母圈极乐园金币三级 | $6.99 | one-time |
| Sub字母圈极乐园金币四级 | $9.99 | one-time |
| Sub字母圈极乐园金币五级 | $17.99 | one-time |
| Sub字母圈极乐园金币六级 | $29.99 | one-time |


### 4i星球

[App page](https://appshunter.io/ios/app/4i/id6740013320)

A dedicated social app for the Fourth Love community, connecting individuals seeking like-minded partners. Features intelligent matching, diverse interaction options, and a vibrant community space for shared interests and discussions.

**Highlights:** Intelligent partner matching, Diverse interactive features, Voice-controlled chat, Community forums, Themed radio content, Secure social environment

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 首充爱豆礼包 | $0.99 | one-time |


## Frequently asked questions

### Is Sub free?

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

### Is 4i星球 free?

4i星球 is free to download, with in-app purchases available.

### Which has better reviews, Sub or 4i星球?

Sub is rated higher. Sub averages 4.6 out of 5 from 155 ratings, while 4i星球 averages 3.4 from 21 ratings.

### Do Sub or 4i星球 have ads?

4i星球 shows ads; Sub does not.

### Which is updated more often, Sub or 4i星球?

Sub ships an update every 2 weeks, and 4i星球 every 3 weeks. Most recently, Sub was updated on October 15, 2026 and 4i星球 on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*