# 公共基础知识2021(最新） vs 公共基础知识2025

公共基础知识2021(最新） and 公共基础知识2025 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 公共基础知识2021(最新） sells 4 one-off in-app purchases and 公共基础知识2025 sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

公共基础知识2021(最新） ships an update every 2 months, 公共基础知识2025 every 4 months. The most recent releases landed on September 12, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | 公共基础知识2021(最新） | 公共基础知识2025 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 72 MB | 119 MB |
| Requires iOS | **13.1** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [发中 严](https://appshunter.io/developer/1674687905) | [Chongqing Kaixin network technology Co., LTD](https://appshunter.io/developer/1809882583) |

## What reviewers say

### 公共基础知识2021(最新）

[App page](https://appshunter.io/ios/app/2021/id1551894519)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP1个月 | $3.99 | one-time |
| VIP3个月 | $4.99 | one-time |
| VIP12个月 | $6.99 | one-time |
| VIP24个月 | $9.99 | one-time |


### 公共基础知识2025

[App page](https://appshunter.io/ios/app/2025/id6745492270)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 购买会员3个月 | $3.99 | one-time |
| 购买会员6个月 | $4.99 | one-time |
| 购买会员12个月 | $6.99 | one-time |
| 购买会员24个月 | $7.99 | one-time |
| 购买视频课程12个月 | $29.99 | one-time |


## Frequently asked questions

### Is 公共基础知识2021(最新） free?

公共基础知识2021(最新） is free to download, with in-app purchases available.

### Is 公共基础知识2025 free?

公共基础知识2025 is free to download, with in-app purchases available.

### Do 公共基础知识2021(最新） or 公共基础知识2025 have ads?

Neither 公共基础知识2021(最新） nor 公共基础知识2025 shows ads.

### Which is updated more often, 公共基础知识2021(最新） or 公共基础知识2025?

公共基础知识2021(最新） ships an update every 2 months, and 公共基础知识2025 every 4 months. Most recently, 公共基础知识2021(最新） was updated on September 12, 2026 and 公共基础知识2025 on September 13, 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.*