# insighto 洞见笔记 vs ReadIsland

The clearest difference is in-app purchases: insighto 洞见笔记 at none against ReadIsland's 2. ReadIsland's advantage is update cadence (every 3 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ReadIsland sells 2 in-app purchases, starting at $1.99 per month. insighto 洞见笔记 asks for nothing beyond the download.

insighto 洞见笔记 ships an update weekly, ReadIsland every 3 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | insighto 洞见笔记 | ReadIsland |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 40 MB | 3 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Insighto Technology Co., Ltd](https://appshunter.io/developer/1889049045) | [潍坊之江明讯教育科技有限公司](https://appshunter.io/developer/1889810636) |

## What reviewers say

### insighto 洞见笔记

[App page](https://appshunter.io/ios/app/insighto-ai/id6761639348)

**Features:** Apple Watch app

**In-app purchases:** none


### ReadIsland

[App page](https://appshunter.io/ios/app/readisland/id6770532909)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 阅读岛 Pro 月付 | $1.99 | per month |
| 阅读岛 Pro 年付 | $14.99 | per year |


## Frequently asked questions

### Is insighto 洞见笔记 free?

insighto 洞见笔记 is free to download, with no in-app purchases.

### Is ReadIsland free?

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

### Do insighto 洞见笔记 or ReadIsland have ads?

Neither insighto 洞见笔记 nor ReadIsland shows ads.

### Which is updated more often, insighto 洞见笔记 or ReadIsland?

insighto 洞见笔记 ships an update weekly, and ReadIsland every 3 days. Most recently, insighto 洞见笔记 was updated on October 31, 2026 and ReadIsland 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.*