# Opus vs ZenClock

The clearest difference is update cadence: ZenClock at every 6 days against Opus's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Opus sells 6 in-app purchases, starting at $4.99 per month and ZenClock sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Opus ships an update every 6 months, ZenClock every 6 days. The most recent releases landed on September 9, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Opus | ZenClock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 days** |
| Size | 57 MB | 22 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tugrul Erdem Dogru](https://appshunter.io/developer/1857249299) | [Beijing Meng Gu Li Net Technology Co.,Ltd.](https://appshunter.io/developer/1896620484) |

## What reviewers say

### Opus

[App page](https://appshunter.io/ios/app/opus-pomodoro-focus-timer/id6757388147)

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Collector Edition (Monthly) | $4.99 | per month |
| Collector Edition (Yearly) | $19.99 | per year |
| American Realism | $2.99 | one-time |
| Surrealism | $2.99 | one-time |
| Abstract Art | $2.99 | one-time |
| Opus Pro: Collector Lifetime | $29.99 | one-time |


### ZenClock

[App page](https://appshunter.io/ios/app/zenclock-focus-timer-and-tasks/id6804976837)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZenClock Pro Monthly | $1.99 | per month |
| ZenClock Pro Yearly | $9.99 | per year |
| ZenClock Pro Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Opus free?

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

### Is ZenClock free?

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

### Do Opus or ZenClock have ads?

Neither Opus nor ZenClock shows ads.

### Which is updated more often, Opus or ZenClock?

Opus ships an update every 6 months, and ZenClock every 6 days. Most recently, Opus was updated on September 9, 2026 and ZenClock on September 15, 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.*