# 足迹时光 vs K12 Class

The clearest difference is in-app purchases: K12 Class at none against 足迹时光's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 足迹时光 sells 3 in-app purchases, starting at $0.99 per 7 days. K12 Class asks for nothing beyond the download.

足迹时光 ships an update monthly, K12 Class every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 足迹时光 | K12 Class |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free |
| Size | 30 MB | 20 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [扬志 张](https://appshunter.io/developer/1688663056) | [ShenZhen Netinfo Technology Co., Ltd.](https://appshunter.io/developer/1439296368) |

## What reviewers say

### 足迹时光

[App page](https://appshunter.io/ios/app/and/id1625541970)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周度会员 | $0.99 | per 7 days |
| 年度会员 | $14.99 | per year |
| 1元当日会员 | $0.99 | one-time |


### K12 Class

[App page](https://appshunter.io/ios/app/k12-class/id6471573229)

Facilitates cross-platform screen mirroring and interaction between devices. Enables enhanced interactivity and can be used alongside other collaboration tools.

**Highlights:** Cross-platform connectivity, Two-way screen mirroring, Enhanced interactivity, Simultaneous use with IdeaHub

**In-app purchases:** none


## Frequently asked questions

### Is 足迹时光 free?

足迹时光 is free to download, with in-app purchases available.

### Is K12 Class free?

K12 Class is free to download, with no in-app purchases.

### Do 足迹时光 or K12 Class have ads?

Neither 足迹时光 nor K12 Class shows ads.

### Which is updated more often, 足迹时光 or K12 Class?

足迹时光 ships an update monthly, and K12 Class every 2 months. Most recently, 足迹时光 was updated on November 3, 2026 and K12 Class on November 4, 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.*