# clock vs ZeroContact

The clearest difference is ads: ZeroContact at none against clock's shown. ZeroContact also leads on update cadence (every 6 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

clock ships an update every 5 weeks, ZeroContact every 6 days. The most recent releases landed on October 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | clock | ZeroContact |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clock-in-clock-out-record/id6502563337/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Monetization | Ad-supported | — |
| Size | 7 MB | 4 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [YUTAKA IZUMIYAMA](https://appshunter.io/developer/1657248429) | [HIROKI NIIYAMA](https://appshunter.io/developer/1867050101) |

## What reviewers say

### clock

[App page](https://appshunter.io/ios/app/clock-in-clock-out-record/id6502563337)

Easily record your work hours by clocking in and out. The app automatically calculates your total working time, including breaks, and displays it in various charts and tables. You can also add notes, manage multiple users, and export your data to PDF.

**Highlights:** Clock-in/clock-out recording, Automatic working hour calculation, Break time tracking, Monthly and annual charts, Multiple user support, PDF export, Dark mode

**In-app purchases:** none


### ZeroContact

[App page](https://appshunter.io/ios/app/zerocontact/id6757471357)

**In-app purchases:** none


## Frequently asked questions

### Is clock free?

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

### Is ZeroContact free?

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

### Do clock or ZeroContact have ads?

clock shows ads; ZeroContact does not.

### Which is updated more often, clock or ZeroContact?

clock ships an update every 5 weeks, and ZeroContact every 6 days. Most recently, clock was updated on October 4, 2026 and ZeroContact on October 28, 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.*