MarsClock is made and published by Scott Maxwell. AppBrain is an independent app data site and isn't affiliated with Scott Maxwell. The app name, icon, screenshots and description belong to Scott Maxwell and are shown as published on Google Play.

About MarsClock

MarsClock is a tools app developed by Scott Maxwell.

Install Statistics

MarsClock has been installed 9.3 thousand times. In the last 30 days, the app was installed 16 times.

User Ratings

MarsClock is rated 4.63 out of 5 stars. The rating is based on 69 ratings.

App Information

MarsClock is freely available from Google Play. The app size is 5.24 MB. The latest version available is 1.32. The last update was on August 11, 2026.

Technical Requirements

MarsClock requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since July 2012.

Description by Scott Maxwell (from Google Play)

MarsClock is an alarm clock that lets you see times for all three of NASA's Mars rovers -- Spirit, Opportunity, and Curiosity -- as well as the InSight lander and the new Perseverance rover. You can also set alarms in Mars time, either as one-shot alarms or as alarms that will repeat every sol (that is, every Martian day).

This app is released for free by a (former) rover driver on NASA's Mars missions. Enjoy it!

Recent changes:
Updating for API level 36 per Google Play Store policies. Also, layout now avoids the notification bar, making it easier to press the overflow menu and to read the title bar.

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More data about MarsClock

Price	Free
Total installs	9.3 thousand
Recent installs	16
Rating	4.63 based on 69 ratings
Ranking	Not ranked
Version	1.32
App size	5.24 MB
Number of libraries	14
Designed for Android	4.4+
Suitable for	Everyone
Ads	No ads

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Screenshots

Screenshots by Scott Maxwell, from the Google Play listing

Official page on Google Play

Alternatives to MarsClock

Google Play Rating history and histogram

Installs over time

MarsClock has been installed 9.3 thousand times. Over the past 30 days, it has been installed 16 times.

Changelog of MarsClock

Show changelog

Developer information for Scott Maxwell

Scott Maxwell

marsclock@scottmaxwell.org

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Comments on MarsClock for Android

★★★★★ A. Karley · Jan 8, 2022

Fun but fundamentally completely useless. Which is fine, me not being a Mars rover driver. No adverts. I need to sample some Jeff Wayne/ War of the Worlds for alarm tones.

★★★★★ A Google User · Jun 11, 2014

Now I can follow both Mars Rovers on Mars time. Makes so much easier to know what time at Mars right now for the Rovers. I will not forget everything Spirit has done on Mars. Rest in peace.

★★★★★ Kevin · Aug 17, 2012

Remove menu button We don't need menu buttons anymore, put the menu button in top right corner

★★★★★ A Google User · Aug 8, 2012

Mars clock This is a cool little app! No problems on my Samsung Galaxy - old version. Thanks, Scott.

★★★★★ A Google User · Apr 6, 2014

MARS CLOCK NASA@VISWA MITHRA Excellent widget clock app

★☆☆☆☆ Kimberly · Aug 6, 2012

Ummmm... If I am looking at this correctly the times are how long each has been on Mars. At this time curiosity had been on Mars for just over an hour but app shows 19+ hours... Disappointed.

Google Play Rankings for MarsClock

This app is not ranked

Technologies used by MarsClock

9 permissions · 14 libraries

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Frequently asked questions about MarsClock

Is MarsClock free?

Yes. MarsClock is free on Google Play.

Is MarsClock still available?

Yes. MarsClock is on Google Play, and the last update we saw was on August 11, 2026.

Does MarsClock contain ads?

No. Google Play does not list MarsClock as containing ads.

What Android version does MarsClock require?

MarsClock runs on Android 4.4 and higher.

How large is MarsClock?

MarsClock is 5.24 MB.

Is MarsClock suitable for children?

Google Play rates the content of MarsClock as suitable for everyone.

How many times has MarsClock been installed?

Google Play lists 5,000+ installs for MarsClock.

How do people rate MarsClock?

MarsClock scores 4.63 out of 5 stars, from 69 ratings on Google Play.

Who made MarsClock?

MarsClock was developed by Scott Maxwell. It is listed in the tools category on Google Play.

What are the best alternatives to MarsClock?

People looking at MarsClock also look at these tools apps: NASA SpaceTime, Mars Time, Alarm Clock Free, Alarm Clock: Alarm App & Sleep, Alarm Clock- Stopwatch & Timer.

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