Map Chart Mosaic

3.3
40 reviews
1K+
Downloads
Content rating
Everyone
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About this app

Offline maps for phone and smart watch: Topographic maps, satellite images, GRIB weather forecast maps and road maps with cycle and hiking trails.
Nautical charts are currently only for USA and Canada available.

Please watch the video and read the FAQ:
http://www.MapChartMosaic.com/

Switch seamlessly between maps from different sources to get detailed information about a location.

Map views are automatically stored in an offline cache on your phone, so that you can view them later without an internet connection.

Download offline maps to your smart watch and view them without connection to your phone.

Add map markers and notes to the offline maps (e.g. your current car parking location).
Create travel routes. Record your GPS Track.
Share map marker, route and track data as GPX files.
Get GPS travel info: speed, course, odometer, route ETA (estimated time of arrival)...

Get GRIB weather forecast maps via Internet download, Email or Iridium Go satellite connection.

You can display the maps also on your Wear OS smartwatch.
The smartwatch app Map Chart Mosaic can be used without a connection to your phone.
But you need the phone app Map Chart Mosaic to download new map charts, map marker and map routes to your smartwatch.

DISCLAIMER
Do NOT use the app for navigation or any other purpose that may result in personal injury or property damage. Use it at your own risk.
Updated on
Jun 6, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

3.4
37 reviews
David Gerace
June 19, 2024
Too many bugs, but hopefully, they will be fixed. Constantly crashing out of app on my Amazfit watch. Finally crashed the entire watch causing reboot. No way to delete points. Can't zoom past "14" which is still far out. The dial isn't used, which could have controlled zoom. Please fix bugs and make this usable. I need an app like this.
2 people found this review helpful
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Leith “Leithal” Cassone
November 23, 2024
It's somewhat works. Support is lacking. I wanted to know if I could added a map point or point of interest. So I emailed support. Basically the answer I get back every single time, it seems like it's an autoresponder, is to ask for a refund if I can't get it working and to watch the video. Even my GPS is back in the 1970s let you edit a map point or point of interest.
1 person found this review helpful
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Adam (SignedAdam)
April 11, 2023
Does what it says on the tin, allows you to copy the phones cached map and upload it to the watch. you get GPS of you're watch where abouts and can mark targets on the phone and watch, both get synced to each other. List of a few updates I'd like to see added : * North, East, West, South are currently missing, the galaxy watch 5 has a built in compass please make use of it. * Uploading the map cache could be even easier by adding a upload to watch button with in the phone app. Thank you
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What’s new

Offline maps for phone and smart watch: topo maps, satellite images...
Please read the FAQ:
http://www.mapchartmosaic.com/faq/