# ZeroClock零时钟 vs TESMAO

The clearest difference is in-app purchases: TESMAO at none against ZeroClock零时钟's 1. TESMAO also leads on iOS requirement (12.0 vs 15.6). ZeroClock零时钟's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. ZeroClock零时钟 sells 1 one-off in-app purchase. TESMAO asks for nothing beyond the download.

ZeroClock零时钟 ships an update every 3 weeks, TESMAO every 2 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ZeroClock零时钟 | TESMAO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 28 MB | 125 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [昌飞 佘](https://appshunter.io/developer/1574625447) | [NanChang YoungBright Technology Co., Ltd](https://appshunter.io/developer/1831930777) |

## 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 | $0.99 | one-time |


### TESMAO

[App page](https://appshunter.io/ios/app/tesmao/id6749754786)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZeroClock零时钟 free?

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

### Is TESMAO free?

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

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

Neither ZeroClock零时钟 nor TESMAO shows ads.

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

ZeroClock零时钟 ships an update every 3 weeks, and TESMAO every 2 months. Most recently, ZeroClock零时钟 was updated on October 27, 2026 and TESMAO on October 24, 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.*