Comparison

Map Chart Mosaic vs Tread®

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Map Chart Mosaic

Access detailed topographic, satellite, and weather forecast maps offline on your iPhone and smartwatch. Plan routes, record GPS tracks, and share your journey data. View maps without an internet connection.

Highlights
  • Offline topographic and satellite maps
  • GRIB weather forecast maps
  • Cycle and hiking trail maps
  • Smartwatch map support (Apple Watch, Fitbit, Garmin, Amazfit)
  • Add map markers and travel routes
  • Record GPS tracks and share as GPX
  • GPS travel information (speed, ETA)
Features
Currently charting
Read full description

Offline maps for iPhone, Apple Watch, Fitbit, Garmin or Amazfit smartwatch: 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 Apple Watch or Fitbit smart watch and view them without connection to your phone. Add map markers and travel routes to the offline maps (e.g. your current car parking location). Create map 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 the Fitbit smart watch. But please don't expect the same maps app performance on the Fitbit as on a phone. The Fitbit is very slow and has very limited space. The Fitbit phone app "Sync" step, shown in the video, is very important. Don't skip it and make sure that the watch app Map Chart is closed during the Sync. 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.

About

Tread®

Track friends, sync navigation data, and plan routes with this powersport navigator companion app. It allows for seamless data transfer and provides smart notifications and live weather updates.

Highlights
  • Track up to 20 friends on map
  • Sync waypoints, tracks, and routes
  • Plan routes with custom preferences
  • Import and export GPX files
  • Smart notifications
  • Live weather updates
Features
Read full description

Roam the unknown with the Tread® app. It lets you track up to 20 friends on the map of your smartphone and Tread® powersport navigator by using the Group Ride Mobile feature and syncs waypoints, tracks, routes and collections across devices. Easily plan routes on your smartphone with the same maps, vehicle profiles and route preferences you have on your Tread device. Users can import and export GPX files and get access to smart notifications and live weather. • Track up to 20 friends on the map of your smartphone and Tread® device by using the Group Ride Mobile1 feature • Wirelessly sync waypoints, tracks, routes and collections across your compatible smartphone and Tread® powersport navigator • Easily calculate faster time or adventurous routes on your smartphone with the same maps, vehicle profiles and route preferences you have on your Tread device • Import and export GPX files to try out new routes or revisit favorite rides • Keep your phone safely stowed away, and still get important messages and alerts via smart notifications2 on your Tread® device display when it’s paired with the Tread® app • Use the app to access live weather updates, viewable on your Tread® navigator’s display

Screenshots

Map Chart Mosaic4 screens
Tread®4 screens

Verdict

The call

The clearest difference is review sentiment: Tread® at 65% against Map Chart Mosaic's 0%. Tread® also leads on price (Free vs $3.99) and rating (4.5 vs 2.6). Map Chart Mosaic's advantage is chart position (#123 vs unranked) and device support (4 vs 2). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Tread® is free to download; Map Chart Mosaic costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Tread® holds the better App Store score, 4.5 against 2.6. That said, the two scores are not equally well evidenced: Tread® has 431 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of Map Chart Mosaic's written reviews are positive against 65% of Tread®'s.

UpkeepUpdate frequency

Map Chart Mosaic ships an update every 5 weeks, Tread® every 3 weeks. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

Scorecard7 real differences · 4 level
Map Chart Mosaic versus Tread®: the parameters behind the verdict, then further details
ParameterMap Chart MosaicTread®
Price$3.99Free — better
Rating2.6 (5 ratings)4.5 (431 ratings) — better
Positive reviews0.0% of reviews65.1% of reviews — better
Number of ratings5431 — better
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#123 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.6 — better16.5
Further details — not scored
Size39 MB288 MB
Age rating4+4+
DeveloperAppMosaic.comGarmin

Customer experience

Map Chart Mosaic

All ratings5 ratings
Positive40.0%
Neutral0.0%
Negative60.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Tread®

All ratings431 ratings
Positive87.9%
Neutral2.1%
Negative10.0%
Written reviews212 reviews
Positive65.1%
Neutral3.3%
Negative31.6%

Bugs and requests

Map Chart Mosaic

Not enough reviews yet to summarise bugs or requests.

Tread®

Reported bugs

4 issues
  • Inability to save/load routes on mobile app
  • Inconsistent behavior when importing routes
  • Frequent disconnections between app and device
  • Lack of metric units and other regional support

Requested features

5 requests
  • Web/desktop app for route planning
  • Improved offline map coverage
  • Collaborative route planning features
  • Better organization and folder structure
  • Larger text/UI options for accessibility

In-app purchases

None

Map Chart Mosaic

No in-app purchases

None

Tread®

No in-app purchases

Questions

Is Map Chart Mosaic free?
Map Chart Mosaic costs $3.99, with no in-app purchases.
Is Tread® free?
Tread® is free to download, with no in-app purchases.
Which has better reviews, Map Chart Mosaic or Tread®?
Tread® is rated higher. Map Chart Mosaic averages 2.6 out of 5 from 5 ratings, while Tread® averages 4.5 from 431 ratings.
Do Map Chart Mosaic or Tread® have ads?
Neither Map Chart Mosaic nor Tread® shows ads.
Which is updated more often, Map Chart Mosaic or Tread®?
Map Chart Mosaic ships an update every 5 weeks, and Tread® every 3 weeks. Most recently, Map Chart Mosaic was updated on October 1, 2026 and Tread® on October 2, 2026.

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