# ZeroClock零时钟 vs MarkBuy

The clearest difference is iOS requirement: ZeroClock零时钟 at 15.6 against MarkBuy's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ZeroClock零时钟 sells 1 one-off in-app purchase and MarkBuy sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ZeroClock零时钟 ships an update every 3 weeks, MarkBuy fortnightly. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ZeroClock零时钟 | MarkBuy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/markbuy/id6745769884/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 27 MB | 56 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [昌飞 佘](https://appshunter.io/developer/1574625447) | [舟 徐](https://appshunter.io/developer/1642105940) |

## What reviewers say

### ZeroClock零时钟

[App page](https://appshunter.io/ios/app/zeroclock/id1574644243)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |


### MarkBuy

[App page](https://appshunter.io/ios/app/markbuy/id6745769884)

Easily track, analyze, and manage all your digital subscriptions in one secure place. Get a clear overview of your spending, receive timely renewal reminders, and gain insights into your financial habits with customizable settings and multi-currency support.

**Highlights:** Comprehensive subscription management, Spending overview and analytics, Calendar renewal reminders, Biometric data protection, Multi-currency support, iCloud sync across devices, Smart app store lookup

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Quarterly Subscription | $3.99 | per 3 months |
| Annual Subscription | $6.99 | per year |
| MarkBuy 高级功能 | $6.99 | one-time |


## Frequently asked questions

### Is ZeroClock零时钟 free?

ZeroClock零时钟 is free to download, with in-app purchases available.

### Is MarkBuy free?

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

### Do ZeroClock零时钟 or MarkBuy have ads?

Neither ZeroClock零时钟 nor MarkBuy shows ads.

### Which is updated more often, ZeroClock零时钟 or MarkBuy?

ZeroClock零时钟 ships an update every 3 weeks, and MarkBuy fortnightly. Most recently, ZeroClock零时钟 was updated on October 10, 2026 and MarkBuy on October 3, 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.*