# SignalClock Lite vs Ops Clock

The clearest difference is review sentiment: Ops Clock at 100% against SignalClock Lite's 0%. SignalClock Lite's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

SignalClock Lite ships an update every 7 months, Ops Clock every 5 months. The most recent releases landed on October 13, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | SignalClock Lite | Ops Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (11 ratings)](https://appshunter.io/ios/app/ops-clock/id1352786229/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 28 MB | 2 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masafumi Endoh](https://appshunter.io/developer/757354996) | [James Kretchmar](https://appshunter.io/developer/1352786228) |

## What reviewers say

### SignalClock Lite

[App page](https://appshunter.io/ios/app/signalclock-lite/id908918011)

This utility app displays a digital clock with a time signal function using local notifications. It offers multiple sound sets and font options. The free version has limitations on scheduling time signals to half-hour intervals.

**Highlights:** Local notification time signals, Multiple sound sets, iOS 10 font support, Half-hour signal scheduling (free edition), Digital clock display

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is SignalClock Lite free?

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

### Is Ops Clock free?

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

### Do SignalClock Lite or Ops Clock have ads?

Neither SignalClock Lite nor Ops Clock shows ads.

### Which is updated more often, SignalClock Lite or Ops Clock?

SignalClock Lite ships an update every 7 months, and Ops Clock every 5 months. Most recently, SignalClock Lite was updated on October 13, 2026 and Ops Clock on September 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.*