# 一讯易卜 vs 大师六壬

The clearest difference is update cadence: 大师六壬 at every 3 weeks against 一讯易卜's every 3 months. 大师六壬 also leads on iOS requirement (10.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

一讯易卜 ships an update every 3 months, 大师六壬 every 3 weeks. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 一讯易卜 | 大师六壬 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id6596744372/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 100 MB | 23 MB |
| Requires iOS | 12.0 | **10.0** |
| 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) | [Shanghai seven fire Network Technology Co., Ltd.](https://appshunter.io/developer/937042038) |

## 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


### 大师六壬

[App page](https://appshunter.io/ios/app/id6596744372)

This app uses ancient astronomical and calendar knowledge for divination and judgment. It offers guidance, a perpetual calendar with lunar and solar conversions, festival reminders, and access to classic texts for online reading.

**Highlights:** Ancient astronomical and calendar-based divination, Guidance and judgment tools, Perpetual calendar with lunar/solar conversion, Festival and solar term reminders, Online reading of ancient texts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 一讯易卜 free?

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

### Is 大师六壬 free?

大师六壬 is free to download, with no in-app purchases.

### Do 一讯易卜 or 大师六壬 have ads?

Neither 一讯易卜 nor 大师六壬 shows ads.

### Which is updated more often, 一讯易卜 or 大师六壬?

一讯易卜 ships an update every 3 months, and 大师六壬 every 3 weeks. Most recently, 一讯易卜 was updated on October 6, 2026 and 大师六壬 on October 18, 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.*