Map Chart Mosaic vs Tread®
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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)
Read full descriptionHide 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.
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.
- 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
Read full descriptionHide 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
Verdict
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
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.
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.
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.
| Parameter | Map Chart Mosaic | Tread® |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 2.6 (5 ratings) | 4.5 (431 ratings) — better |
| Positive reviews | 0.0% of reviews | 65.1% of reviews — better |
| Number of ratings | 5 | 431 — better |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #123 — better | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.5 |
| Further details — not scored | ||
| Size | 39 MB | 288 MB |
| Age rating | 4+ | 4+ |
| Developer | AppMosaic.com | Garmin |
Customer experience
Map Chart Mosaic
Tread®
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
Map Chart Mosaic
No in-app purchases
Tread®
No in-app purchases









