# QingCal vs 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具

The clearest difference is device support: QingCal at 5 against 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具's 2. QingCal also leads on iOS requirement (15.0 vs 17.5). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. QingCal sells 7 in-app purchases, starting at $1.99 per month and 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 sells 9 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 27, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | QingCal | 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/qingcal/id1633244019/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 28 MB |
| Requires iOS | **15.0** | 17.5 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [文长 侯](https://appshunter.io/developer/1197107833) | [惠桐 董](https://appshunter.io/developer/1822284792) |

## What reviewers say

### QingCal

[App page](https://appshunter.io/ios/app/qingcal/id1633244019)

This app helps you organize your daily tasks, set goals, and manage your time effectively. It offers features for planning by year, month, and week, along with data statistics to track your progress and review your performance.

**Highlights:** Daily to-do list creation, Year, month, and week planning, Task completion tracking, Data statistics and review, Habit formation support, Reminders and notifications

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly | $1.99 | per month |
| VIP Quarterly | $3.99 | per 3 months |
| VIP Yearly | $12.99 | per year |
| 1个月VIP | $1.99 | one-time |
| 3个月VIP | $3.99 | one-time |
| 1年VIP | $12.99 | one-time |
| 永久VIP | $49.99 | one-time |


### 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具

[App page](https://appshunter.io/ios/app/id6747738523)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 今知错题本月度Pro会员 | $0.99 | per month |
| 今知错题本季度会员 | $1.99 | per 3 months |
| 今知 Max 月度会员 | $2.99 | per month |
| 今知 Max 季度会员 | $5.99 | per 3 months |
| 今知错题本Pro年度会员 | $6.99 | per year |
| 今知 Max 年度会员 | $19.99 | per year |
| 轻量积分卡 | $0.99 | one-time |
| 进阶积分卡 | $2.99 | one-time |
| 畅用积分卡 | $5.99 | one-time |


## Frequently asked questions

### Is QingCal free?

QingCal is free to download, with in-app purchases available.

### Is 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 free?

今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 is free to download, with in-app purchases available.

### Do QingCal or 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 have ads?

Neither QingCal nor 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 shows ads.

### Which is updated more often, QingCal or 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具?

QingCal ships an update every 4 days, and 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 every 4 days. Most recently, QingCal was updated on October 27, 2026 and 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 on October 23, 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.*