# 夸克 vs Calendar Clock

The clearest difference is review sentiment: 夸克 at 49% against Calendar Clock's 0%. 夸克 also leads on price (Free vs $0.99) and update cadence (every 3 days vs every 41 months). Calendar Clock's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

夸克 is free to download; Calendar Clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

夸克 ships an update every 3 days, Calendar Clock every 41 months. The most recent releases landed on September 29, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 夸克 | Calendar Clock |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.3 (628K ratings)](https://appshunter.io/ios/app/ai/id1160172628/reviews)** | — |
| Number of ratings | **628K** | — |
| Positive reviews | **48.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 41 months |
| Monetization | **Freemium** | Paid |
| Size | 776 MB | 4 MB |
| Requires iOS | **13.0** | 26.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [广州市动悦信息技术有限公司](https://appshunter.io/developer/1693338481) | [Systemiko Inc.](https://appshunter.io/developer/680630947) |

## What reviewers say

### 夸克

[App page](https://appshunter.io/ios/app/ai/id1160172628)

This app offers a fast and accurate search experience, a cloud storage service with ample space and unlimited speed, and an AI-powered camera for scanning documents and identifying objects. It also includes tools for learning, such as a university problem solver and study materials.

**Highlights:** Fast and accurate search, Large cloud storage with unlimited speed, AI camera for scanning and identification, Document conversion (PDF to Word), Photo translation, University problem solver, Automatic wallpaper rotation

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great user experience
- 🚀 Fast and efficient
- 📚 Excellent reading mode
- 🤖 Impressive AI search engine

**What reviewers complain about**

- 🐛 Crashes and stability issues
- ⚠️ Slow download speeds
- 🔒 Privacy concerns with permissions
- 🚫 Restricted access to certain websites

**Reported bugs**

- Disappearing download progress
- Audio issues with video playback
- Incompatibility with some devices

**Requested features**

- Add option to change language
- Integrate with file management apps
- Provide more customization options
- Improve video playback performance


### Calendar Clock

[App page](https://appshunter.io/ios/app/calendar-clock/id1451445740)

This app displays the current year, month, week, and time on a single screen with a clean design. It offers customizable theme colors and functions as a desk clock. The app disables device sleep mode while active.

**Highlights:** All-in-one screen display, Year, month, week, day, hour, minute, second, Switchable theme colors (dark, light, green, blue), Disables device sleep mode, Acts as a desk clock

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 夸克 free?

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

### Is Calendar Clock free?

Calendar Clock costs $0.99, with no in-app purchases.

### Do 夸克 or Calendar Clock have ads?

夸克 shows ads; Calendar Clock does not.

### Which is updated more often, 夸克 or Calendar Clock?

夸克 ships an update every 3 days, and Calendar Clock every 41 months. Most recently, 夸克 was updated on September 29, 2026 and Calendar Clock on September 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.*