# Spyglass vs Map Chart Mosaic

The clearest difference is review sentiment: Spyglass at 80% against Map Chart Mosaic's 0%. Spyglass also leads on price (Free vs $3.99) and rating (4.7 vs 2.6). Map Chart Mosaic's advantage is in-app purchases (none vs 4) and ads (none vs shown). On update cadence, chart position and device support there is nothing between them.

Spyglass is free to download; Map Chart Mosaic costs $3.99 up front. Spyglass sells 4 in-app purchases, starting at $3.99 per month. Map Chart Mosaic asks for nothing beyond the download.

Spyglass holds the better App Store score, 4.7 against 2.6. That said, the two scores are not equally well evidenced: Spyglass has 3.9K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 80% of Spyglass's written reviews are positive against 0% of Map Chart Mosaic's.

Spyglass ships an update every 6 weeks, Map Chart Mosaic every 5 weeks. Both last shipped on October 29, 2026.

## The numbers

| Metric | Spyglass | Map Chart Mosaic |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.7 (3.9K ratings)](https://appshunter.io/ios/app/spyglass/id332639548/reviews)** | [2.6 (5 ratings)](https://appshunter.io/ios/app/map-chart-mosaic/id1444818142/reviews) |
| Number of ratings | **3.9K** | 5 |
| Positive reviews | **80.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | #127 | **#74** |
| Size | 66 MB | 39 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ahafonau](https://appshunter.io/developer/319585607) | [AppMosaic.com](https://appshunter.io/developer/301672819) |

## What reviewers say

### Spyglass

[App page](https://appshunter.io/ios/app/spyglass/id332639548)

**Currently charting:** #127 Top Grossing · Navigation (US App Store)

This app is a comprehensive offline navigation tool for outdoor and off-road adventures. It combines a high-tech compass, GPS receiver, and augmented reality display with numerous tools for tracking, measuring, and celestial observation.

**Highlights:** Offline GPS and maps, Augmented reality display, Advanced compass and gyrocompass, Waypoint tracking and navigation, Sun, Moon, and star finder, Optical rangefinder, Camera with GPS data overlay

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spyglass Plus | $3.99 | per month |
| Spyglass Plus (Month) | $3.99 | per month |
| Spyglass Plus (Year) | $29.99 | per year |
| Spyglass Pro (Lifetime) | $39.99 | one-time |

**What reviewers like**

- 🗺️ Excellent navigation and mapping features
- 🔍 Highly accurate compass and location tracking
- 🔭 Useful augmented reality and sextant functions
- 📸 Ability to capture geotagged photos
- 🛠️ Comprehensive set of tools and utilities

**What reviewers complain about**

- 🔋 High battery consumption
- 🤔 Steep learning curve and complex interface
- 🗺️ Outdated or incomplete map data in some regions
- 🐛 Occasional bugs and crashes reported
- 💰 Subscription model for advanced features

**Reported bugs**

- Compass not always accurate or consistent
- Freezing or unresponsive issues after updates
- Difficulty syncing waypoints and locations

**Requested features**

- Improved waypoint and location management
- Larger text and UI elements for better readability
- Integration with popular mapping and navigation apps
- Offline elevation data and terrain analysis
- Apple Watch companion app for on-the-go use


### Map Chart Mosaic

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

**Currently charting:** #74 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 Spyglass free?

Spyglass is free to download, with in-app purchases available.

### Is Map Chart Mosaic free?

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

### Which has better reviews, Spyglass or Map Chart Mosaic?

Spyglass is rated higher. Spyglass averages 4.7 out of 5 from 3.9K ratings, while Map Chart Mosaic averages 2.6 from 5 ratings.

### Do Spyglass or Map Chart Mosaic have ads?

Spyglass shows ads; Map Chart Mosaic does not.

### Which is updated more often, Spyglass or Map Chart Mosaic?

Spyglass ships an update every 6 weeks, and Map Chart Mosaic every 5 weeks. Most recently, Spyglass was updated on October 29, 2026 and Map Chart Mosaic on October 29, 2026.

### Which is more popular, Spyglass or Map Chart Mosaic?

Spyglass currently peaks at #127 in the App Store charts, and Map Chart Mosaic at #74. Chart position reflects recent download velocity rather than total install base.

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