# Combat Clock 1a — 12 hour ships clock replica

> Replica WWI/WWII US Navy ship's clock with GPS and alarm. (iPhone/iPad app by JOHN W GRANHOLM.)

- Source: https://appshunter.io/ios/app/combat-clock-1a/id1464746159 (this page in markdown: same URL + `.md`)
- Developer: [JOHN W GRANHOLM](https://appshunter.io/developer/1464746158)
- Category: Entertainment, Navigation
- Price: $0.99
- Rating: 3.92/5 from 64 App Store ratings · 16 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 10 MB
- Languages: English
- Released: 2019-05-24
- Data updated: 2026-09-04
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/combat-clock-1a/id1464746159/reviews.md

## What is Combat Clock 1a?

Combat Clock is a 12-hour analog clock (sweeping second hand) that is a contemporary replica of a WWI/WWII ship's clock used by the US Navy, Coast Guard and other government organizations.  Location data is leveraged to display current GPS coordinates, heading and compass bearing that indicates the direction the top of the device (portrait mode) is pointing to (12 is North, 6 South, 3 East and 9 is West).  Combat Clock includes an alarm that rings every half hour (1 to 8 bells) based on the old deck watch shift standard of 4 hour. The application is active only when it is in the foreground. No location or personal data is saved or sent from the device.  There are no in-application advertisements, or purchases.

## Key features

- 12-hour analog clock with sweeping second hand
- Displays GPS coordinates
- Shows device heading and compass bearing
- Half-hourly alarm (1-8 bells)
- Foreground active only
- No data saving or transmission

## Recent user reviews (10 of 16)

All indexed reviews: https://appshunter.io/ios/app/combat-clock-1a/id1464746159/reviews.md

### 5/5 — Simple combat block

*2026-05-10, version 1.2.1*

NICE clock works well bells sound sometimes but do when they should but love the clock 👍👍👍👍👍

### 4/5 — Landscape or Portrait Orientation Ignored

*2025-09-24, version 1.2.1*

On a cell phone or iPad you can't tell without a bit of doing about whether the heading arrow is correct in the landscape orientation or the portrait orientation. Minor point but so simple to notice!

### 2/5 — The clock is nice but.

*2025-09-02, version 1.2.1*

There are no options for color change or size. It
Is hard to see the red hands.

### 5/5 — Review by a retired Navy blue shirt

*2025-04-16, version 1.2.1*

Very accurate ship’s clock replica with added GPS data

### 2/5 — Make it work in the background

*2024-10-04, version 1.2.1*

All this app needs to be even remotely useful as it pertains to the bells is to work in the background or when the screen is locked. 
Seems like this could/should be a simple upgrade

### 5/5 — Dual Time

*2023-10-20, version 1.2.1*

Works really great, especially if you’ve never been in the military but your company tracks everything with a 24 HR. time.

### 3/5 — Would be pretty cool if you could read it.

*2023-08-18, version 1.2.1*

Why are the hands so dark? You can’t see them against the black background. Otherwise I would use it.

### 4/5 — Combat clock

*2022-03-24, version 1.2.1*

Is a awesome app. Only wish it would ring in the background too. Anyone who loves clock apps will love it.

### 1/5 — No sound

*2022-01-20, version 1.2.1*

No sound and it’s not clear how to change settings.  It would be very helpful if it would work in the background (if it does work at all).

### 1/5 — What is it?

*2022-01-10, version 1.2.1*

It is a watch face. Nothing more. Your phone already has a clock.

## Frequently asked questions about Combat Clock 1a

### What is Combat Clock?

Combat Clock is a 12-hour analog clock app that mimics a WWI/WWII US Navy ship's clock. It displays GPS coordinates, heading, and a compass bearing, and includes a half-hourly alarm system.

### How does the alarm in Combat Clock work?

The alarm in Combat Clock rings every half hour, signaling between 1 and 8 bells. This is based on the traditional 4-hour deck watch shift standard used on ships.

### Does Combat Clock use my location data?

Yes, Combat Clock leverages your device's location data to display your current GPS coordinates, heading, and compass bearing. However, no location or personal data is saved or sent from your device.

### Is Combat Clock available on Android?

Based on the provided data, Combat Clock is available on iPhone and iPad, but there is no information indicating Android compatibility.

### What is the price of Combat Clock?

Combat Clock is a paid application, priced at $0.99. There are no in-application advertisements or purchases.

### How often is Combat Clock updated?

The latest version of Combat Clock is 1.2.1, which was last updated on November 6, 2019. This indicates infrequent updates.

### What is the age rating for Combat Clock?

Combat Clock has an age rating of 4+, making it suitable for a wide range of users.

### Does Combat Clock work offline?

The application is active only when it is in the foreground. While it displays GPS data, it's unclear if all features function without an active internet connection, though location services are typically independent.

## Version history (last 4 releases)

### 1.2.1 — 2019-11-06

Compatibility with iOS 12 added. Application now supports iOS 12.x and iOS 13.x

### 1.2.0 — 2019-10-30

Resolved issue playing sound on devices running iOS 13.1
Clock remains visible when running (disabled sleep timer), and is re-enabled when clock is in the background or terminated.

### 1.01 — 2019-07-12

Updated clock hands algorithm to allow smoother movements.
Updated "access your location" popup text

### 1.0 — 2019-05-23

No release notes.

## Apps similar to Combat Clock 1a

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [RTS - Relative Time Stopwatch](https://appshunter.io/ios/app/rts-relative-time-stopwatch/id6747949287) | — | $0.99 | Entertainment |
| [420 Clock](https://appshunter.io/ios/app/420-clock/id1046059721) | — | $9.99 | Entertainment |
| [My Coo Coo Clock](https://appshunter.io/ios/app/my-coo-coo-clock/id505819952) | 1.0 (1) | $1.99 | Entertainment |
| [Predator Clock - Alien time](https://appshunter.io/ios/app/predator-clock-alien-time/id513835976) | 4.6 (61) | $1.99 | Entertainment |
| [Standard Time Berlin](https://appshunter.io/ios/app/standard-time-berlin/id6720742103) | — | Free | Entertainment |

## More apps by JOHN W GRANHOLM

- [Combat Clock 2a](https://appshunter.io/ios/app/combat-clock-2a/id1471648729)
- [Combat Clock 3a](https://appshunter.io/ios/app/combat-clock-3a/id1475527383)
- [Combat Clock 4a](https://appshunter.io/ios/app/combat-clock-4a/id1481901129)

All apps by JOHN W GRANHOLM: https://appshunter.io/developer/1464746158

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*