# 京师万学 vs 数独世界

The clearest difference is ads: 京师万学 at none against 数独世界's shown. 京师万学 also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (13.0 vs 15.6). On price, 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.

京师万学 ships an update every 3 weeks, 数独世界 every 3 months. The most recent releases landed on October 15, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 京师万学 | 数独世界 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 29 MB | 110 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 12+ |
| Developer | [杉 刘](https://appshunter.io/developer/1581737630) | [振宇 于](https://appshunter.io/developer/1376588969) |

## What reviewers say

### 京师万学

[App page](https://appshunter.io/ios/app/id1583506190)

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

**In-app purchases:** none


### 数独世界

[App page](https://appshunter.io/ios/app/id6777591474)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 京师万学 free?

京师万学 is free to download, with no in-app purchases.

### Is 数独世界 free?

数独世界 is free to download, with no in-app purchases.

### Do 京师万学 or 数独世界 have ads?

数独世界 shows ads; 京师万学 does not.

### Which is updated more often, 京师万学 or 数独世界?

京师万学 ships an update every 3 weeks, and 数独世界 every 3 months. Most recently, 京师万学 was updated on October 15, 2026 and 数独世界 on October 28, 2026.

---

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