# ZK助手 vs 记课时

The clearest difference is review sentiment: ZK助手 at 96% against 记课时's 38%. ZK助手 also leads on rating (4.8 vs 3.3) and update cadence (every 2 weeks vs every 5 weeks). 记课时's advantage is ads (none vs shown). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. ZK助手 sells 3 one-off in-app purchases and 记课时 sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ZK助手 holds the better App Store score, 4.8 against 3.3. That said, the two scores are not equally well evidenced: ZK助手 has 107 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 96% of ZK助手's written reviews are positive against 38% of 记课时's.

ZK助手 ships an update every 2 weeks, 记课时 every 5 weeks. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ZK助手 | 记课时 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (107 ratings)](https://appshunter.io/ios/app/zk/id1498018958/reviews)** | [3.3 (8 ratings)](https://appshunter.io/ios/app/id6451461673/reviews) |
| Number of ratings | **107** | 8 |
| Positive reviews | **96.2% of reviews** | 37.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 79 MB | 7 MB |
| Requires iOS | **15** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [文雪 程](https://appshunter.io/developer/1533529523) | [海云 吴](https://appshunter.io/developer/1078143101) |

## What reviewers say

### ZK助手

[App page](https://appshunter.io/ios/app/zk/id1498018958)

This app offers precise timing tools for various needs, including manual time adjustments and countdowns. It features visual and auditory alerts, customizable skins, and a dedicated alarm function for timely reminders.

**Highlights:** Precise time source selection (Beijing/System), Manual time adjustment (seconds, milliseconds), Millisecond highlighting and display toggle, Countdown mode with smart interval detection, Auditory countdown alerts, Customizable skins (solid & colorful), Dedicated alarm function for reminders

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 请作者喝可乐 | $0.99 | one-time |
| 给作者加鸡腿 | $0.99 | one-time |
| 支付￥12移除广告 | $1.99 | one-time |

**What reviewers like**

- 👍 Very useful for grabbing coupons
- 👍 Excellent for grabbing limited items (e.g., Moutai, Linabell)
- 👍 Accurate time display
- 👍 Flexible time placement and transparency settings
- 👍 Smart and intelligent features

**What reviewers complain about**

- 🐛 App is too large, takes up space
- 🐛 Picture in Picture not working on iOS 14.8.1
- 🐛 Phone gets hot with Dynamic Island
- 🐛 No calibration option

**Reported bugs**

- Picture in Picture function is not working for ios 14.8.1
- Phone gets hot with Dynamic Island feature
- No calibration available

**Requested features**

- Add virtual location function
- Add calibration function
- Improve Picture in Picture for older iOS versions


### 记课时

[App page](https://appshunter.io/ios/app/id6451461673)

Manage interest class schedules and student attendance with features like group management, course scheduling, payment tracking, and attendance recording. Offers real-time statistics, class reminders, and data export options. Supports iCloud backup and recovery.

**Highlights:** Group and course management, Payment tracking and remaining class calculation, One-click attendance recording, Real-time statistics and reports, Class reminders, iCloud backup and export (Excel/PDF)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| APP Monthly subscription | $0.99 | per month |
| APP Yearly subscription | $2.99 | per year |
| 记课时专业版 | $3.99 | one-time |


## Frequently asked questions

### Is ZK助手 free?

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

### Is 记课时 free?

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

### Which has better reviews, ZK助手 or 记课时?

ZK助手 is rated higher. ZK助手 averages 4.8 out of 5 from 107 ratings, while 记课时 averages 3.3 from 8 ratings.

### Do ZK助手 or 记课时 have ads?

ZK助手 shows ads; 记课时 does not.

### Which is updated more often, ZK助手 or 记课时?

ZK助手 ships an update every 2 weeks, and 记课时 every 5 weeks. Most recently, ZK助手 was updated on October 18, 2026 and 记课时 on October 10, 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.*