# Ops Clock vs Minimum Clock

The clearest difference is review sentiment: Ops Clock at 100% against Minimum Clock's 0%. Ops Clock also leads on in-app purchases (none vs 1) and ads (none vs shown). Minimum Clock's advantage is update cadence (every 3 weeks vs every 5 months) and iOS requirement (12.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Minimum Clock sells 1 one-off in-app purchase. Ops Clock asks for nothing beyond the download.

Ops Clock holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 11 and 3 respectively. Written reviews point the same way: 100% of Ops Clock's written reviews are positive against 0% of Minimum Clock's.

Ops Clock ships an update every 5 months, Minimum Clock every 3 weeks. The most recent releases landed on September 28, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Ops Clock | Minimum Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (11 ratings)](https://appshunter.io/ios/app/ops-clock/id1352786229/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/minimum-clock/id1543594398/reviews) |
| Number of ratings | **11** | 3 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 15 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Kretchmar](https://appshunter.io/developer/1352786228) | [Mihoko Araki](https://appshunter.io/developer/1476136915) |

## What reviewers say

### Ops Clock

[App page](https://appshunter.io/ios/app/ops-clock/id1352786229)

A versatile utility app offering a world clock with over 400 cities, unlimited timers, and three powerful calculators for time zone, time, and date arithmetic. It also features an event log to track real-time occurrences and elapsed times.

**Highlights:** World clock with 400+ cities, Unlimited count-up and countdown timers, Time zone, time, and date calculators, Event log with elapsed time tracking, Customizable labels and notifications

**Features:** Vision Pro support

**In-app purchases:** none


### Minimum Clock

[App page](https://appshunter.io/ios/app/minimum-clock/id1543594398)

This app offers a minimalist digital and analog clock with customizable features. Adjust size, switch between 12/24 hour formats, and select background colors. It includes a time signal with numerous tones and allows for date format changes.

**Highlights:** Digital and analog clock display, Adjustable clock size, 12/24 hour format switching, Customizable background colors, Hourly time signal with 78 tones, Date format customization, Screen rotation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Minimum Clock with no ads | $1.99 | one-time |


## Frequently asked questions

### Is Ops Clock free?

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

### Is Minimum Clock free?

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

### Which has better reviews, Ops Clock or Minimum Clock?

Ops Clock is rated higher. Ops Clock averages 4.7 out of 5 from 11 ratings, while Minimum Clock averages 4.3 from 3 ratings.

### Do Ops Clock or Minimum Clock have ads?

Minimum Clock shows ads; Ops Clock does not.

### Which is updated more often, Ops Clock or Minimum Clock?

Ops Clock ships an update every 5 months, and Minimum Clock every 3 weeks. Most recently, Ops Clock was updated on September 28, 2026 and Minimum Clock on September 19, 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.*