# ZK助手 vs CoAgent

The clearest difference is in-app purchases: CoAgent at none against ZK助手's 3. CoAgent also leads on ads (none vs shown). ZK助手's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. ZK助手 sells 3 one-off in-app purchases. CoAgent asks for nothing beyond the download.

ZK助手 ships an update every 2 weeks, CoAgent every 6 weeks. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ZK助手 | CoAgent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (107 ratings)](https://appshunter.io/ios/app/zk/id1498018958/reviews)** | — |
| Number of ratings | **107** | — |
| Positive reviews | 96.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 14 MB |
| Requires iOS | 15 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [文雪 程](https://appshunter.io/developer/1533529523) | [Guangzhou Yindong Technology Co., Ltd.](https://appshunter.io/developer/1709438259) |

## 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


### CoAgent

[App page](https://appshunter.io/ios/app/coagent/id6775402109)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZK助手 free?

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

### Is CoAgent free?

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

### Do ZK助手 or CoAgent have ads?

ZK助手 shows ads; CoAgent does not.

### Which is updated more often, ZK助手 or CoAgent?

ZK助手 ships an update every 2 weeks, and CoAgent every 6 weeks. Most recently, ZK助手 was updated on October 10, 2026 and CoAgent on September 30, 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.*