# 一讯易卜 vs 三七笔记

The clearest difference is in-app purchases: 一讯易卜 at none against 三七笔记's 9. 三七笔记's advantage is update cadence (every 10 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 三七笔记 sells 9 one-off in-app purchases. 一讯易卜 asks for nothing beyond the download.

一讯易卜 ships an update every 3 months, 三七笔记 every 10 days. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 一讯易卜 | 三七笔记 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 100 MB | 94 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [广东一讯云科技有限公司](https://appshunter.io/developer/1704787634) | [海龙 陈](https://appshunter.io/developer/1819508990) |

## What reviewers say

### 一讯易卜

[App page](https://appshunter.io/ios/app/id6463708624)

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

**In-app purchases:** none


### 三七笔记

[App page](https://appshunter.io/ios/app/id6747325065)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一月AI会员 | $3.99 | one-time |
| 一年排盘会员 | $12.99 | one-time |
| 一年AI会员 | $12.99 | one-time |
| 一年综合会员 | $19.99 | one-time |
| 两年排盘会员 | $24.99 | one-time |
| 三年AI会员 | $29.99 | one-time |
| 两年综合会员 | $29.99 | one-time |
| 五年排盘会员 | $39.99 | one-time |
| 三年综合会员 | $39.99 | one-time |


## Frequently asked questions

### Is 一讯易卜 free?

一讯易卜 is free to download, with no in-app purchases.

### Is 三七笔记 free?

三七笔记 is free to download, with in-app purchases available.

### Do 一讯易卜 or 三七笔记 have ads?

Neither 一讯易卜 nor 三七笔记 shows ads.

### Which is updated more often, 一讯易卜 or 三七笔记?

一讯易卜 ships an update every 3 months, and 三七笔记 every 10 days. Most recently, 一讯易卜 was updated on September 18, 2026 and 三七笔记 on September 19, 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.*