# JJ20 vs 鱼头指南针

The clearest difference is in-app purchases: JJ20 at none against 鱼头指南针's 1. JJ20 also leads on update cadence (every 10 days vs monthly) and iOS requirement (11.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 鱼头指南针 sells 1 one-off in-app purchase. JJ20 asks for nothing beyond the download.

JJ20 ships an update every 10 days, 鱼头指南针 monthly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | JJ20 | 鱼头指南针 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (29 ratings)](https://appshunter.io/ios/app/jj20/id1334508518/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 34.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Free | — |
| Size | 112 MB | 106 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, Vision Pro |
| Age rating | 17+ | 12+ |
| Developer | [Shanghai Orota Tech Co., Ltd.](https://appshunter.io/developer/1448096234) | [超 韩](https://appshunter.io/developer/1892054133) |

## What reviewers say

### JJ20

[App page](https://appshunter.io/ios/app/jj20/id1334508518)

This app integrates news, social networking, concert tracking, and an online store. It aims to foster close interaction and create a supportive community for fans.

**Highlights:** News feed, Social networking, Concert tracking, Online store, Fan community building

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

**In-app purchases:** none


### 鱼头指南针

[App page](https://appshunter.io/ios/app/id6771191007)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 完整版永久解锁 | $0.99 | one-time |


## Frequently asked questions

### Is JJ20 free?

JJ20 is free to download, with no in-app purchases.

### Is 鱼头指南针 free?

鱼头指南针 is free to download, with in-app purchases available.

### Do JJ20 or 鱼头指南针 have ads?

Neither JJ20 nor 鱼头指南针 shows ads.

### Which is updated more often, JJ20 or 鱼头指南针?

JJ20 ships an update every 10 days, and 鱼头指南针 monthly. Most recently, JJ20 was updated on October 25, 2026 and 鱼头指南针 on October 28, 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.*