Mars Watch

Name: Mars Watch
Rating: 4.5 (84 reviews)
Author: Matthew Flint

By: Matthew Flint

Current time & Latest Weather

Features & Capabilities

Mars Watch is a playful Chrome extension that brings Mars time and current weather to your browser. It calculates Mars Coordinated Time (MCT), shows the latest Curiosity rover weather, and displays images of Mars probes, plus quick notes on past and present Mars research projects.

Designed for curious minds and space-adventure daydreamers, it offers time calculations for each probe's location and a dash of space-history whimsy. It's deliberately lightweight and mildly entertaining, rather than a must-have tool for serious planning.

User Growth & Download Statistics

App Education Data

By:

Matthew Flint

Rating:

4.50

(84)

Version:

2.2.0 Last updated: 2022-01-10

Version code:

846501043

Creation date:

2017-04-13

Compatible devices:

Size:

18.82MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-07

Compare stats and ranking:

Ranking

# 161,460 ▲ 972

Other rankings

#67 in opportunity keyword 4 ▲ 7

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Matthew Flint

Apple Apps Store

https://apps.apple.com/us/app/mars-watch/id1221014167

Website:

https://daringsnowball.net/apps/MarsWatch/

User Reviews

Mars Watch is praised for a clean, free interface that makes Mars time, weather, and rover info accessible, plus good photos and mission history. It excels at calibrating Mars time and offering quick, educational content about rovers. Recurrent drawbacks include stale or unreliable weather data due to aging probes, the absence of the Perseverance rover, and Apple Watch complications that frequently freeze or fail to update. Some users also report UI quirks like being stuck in credits/settings. Overall, it’s useful for space fans, but it needs data updates and watch integration improvements.

Pros

Accurate Mars time calibration aligned with actual Mars time.
Mars weather and current mission details, including rover information.
Simple, clean, beginner-friendly interface that is free and quick to use.
Engaging visuals with informative photos and historical context about past Mars missions.

Cons

Weather data is often not updated and can appear stale or missing.
Perseverance rover is not listed; users want it added.
Apple Watch complication is unreliable, often freezes and doesn't update.
Data relies on aging (dead) probes, leading to outdated or questionable information.

Recent reviews

Isn’t the insight lander dead? It died because of dust accumulated on the solar panels preventing from getting the needed power, right? I came in with high expectations, and don’t get me wrong it deserves the five star review, but it feels outdated.

by n*****, 2026-05-02

The insight lander has been dead for 3 yrs now, should be updated… otherwise fine.

by Ak*****, 2025-01-20

This is a great mars clock and even has info on the time on mars and the different rovers. I did some research and this is perfectly calibrated to actual mars time.