# Topo Maps US vs Map Chart Mosaic

The clearest difference is review sentiment: Topo Maps US at 88% against Map Chart Mosaic's 0%. Topo Maps US also leads on price (Free vs $3.99) and rating (4.4 vs 2.6). Map Chart Mosaic's advantage is chart position (#128 vs unranked). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Topo Maps US 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.

Topo Maps US holds the better App Store score, 4.4 against 2.6. That said, the two scores are not equally well evidenced: Topo Maps US has 213 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 88% of Topo Maps US's written reviews are positive against 0% of Map Chart Mosaic's.

Topo Maps US ships an update every 2 months, Map Chart Mosaic every 5 weeks. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Topo Maps US | Map Chart Mosaic |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.4 (213 ratings)](https://appshunter.io/ios/app/topo-maps-us/id1033846196/reviews)** | [2.6 (5 ratings)](https://appshunter.io/ios/app/map-chart-mosaic/id1444818142/reviews) |
| Number of ratings | **213** | 5 |
| Positive reviews | **87.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#128** |
| Size | 5 MB | 39 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [DC Cloud Apps, LLC](https://appshunter.io/developer/353416960) | [AppMosaic.com](https://appshunter.io/developer/301672819) |

## What reviewers say

### Topo Maps US

[App page](https://appshunter.io/ios/app/topo-maps-us/id1033846196)

Access and download detailed topographic maps of the United States for offline use. Track your location, mark waypoints, and record your routes for outdoor activities. Navigate with direction arrows and measure distances on the map.

**Highlights:** Download US topographic maps, Offline map viewing, GPS location tracking, Add and import waypoints (flags), Import and share GPX/LOC files, Record and share trails, Elevation profile charts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and simple user interface
- 📱 Works completely offline with downloaded maps
- 💰 Free app with no subscriptions or ads
- 🗺️ High-quality USGS topographic maps
- 📍 Accurate GPS location tracking

**What reviewers complain about**

- 🐛 White/gray blocks appearing on offline maps
- 🔋 High battery drain during route recording
- ❌ Limited color options for flags (only red)
- ⚠️ Route recording stops unexpectedly
- 🔍 No search functionality for trails/landmarks

**Reported bugs**

- White and gray blocks appearing on downloaded offline maps
- Route recording stops unexpectedly mid-hike
- High battery drain during route tracking
- GPX file import issues in iOS 13+
- Map display issues near borders

**Requested features**

- Pause/resume tracking during hikes
- Search feature for trails and landmarks
- Apple Watch app support
- CarPlay integration
- Slope shading visualization


### Map Chart Mosaic

[App page](https://appshunter.io/ios/app/map-chart-mosaic/id1444818142)

**Currently charting:** #128 Top Paid · Navigation (US App Store)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Topo Maps US free?

Topo Maps US is free to download, with no in-app purchases.

### Is Map Chart Mosaic free?

Map Chart Mosaic costs $3.99, with no in-app purchases.

### Which has better reviews, Topo Maps US or Map Chart Mosaic?

Topo Maps US is rated higher. Topo Maps US averages 4.4 out of 5 from 213 ratings, while Map Chart Mosaic averages 2.6 from 5 ratings.

### Do Topo Maps US or Map Chart Mosaic have ads?

Neither Topo Maps US nor Map Chart Mosaic shows ads.

### Which is updated more often, Topo Maps US or Map Chart Mosaic?

Topo Maps US ships an update every 2 months, and Map Chart Mosaic every 5 weeks. Most recently, Topo Maps US was updated on October 15, 2026 and Map Chart Mosaic on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*