# Spyglass vs GNSS View

The clearest difference is in-app purchases: GNSS View at none against Spyglass's 4. GNSS View also leads on ads (none vs shown). Spyglass's advantage is rating (4.7 vs 4.3) and ratings volume (3.9K vs 19). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Spyglass sells 4 in-app purchases, starting at $3.99 per month. GNSS View asks for nothing beyond the download.

Spyglass holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Spyglass has 3.9K ratings behind it against 19, 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 69% of GNSS View's.

Spyglass ships an update every 6 weeks, GNSS View every 7 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Spyglass | GNSS View |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3.9K ratings)](https://appshunter.io/ios/app/spyglass/id332639548/reviews)** | [4.3 (19 ratings)](https://appshunter.io/ios/app/gnss-view/id924350018/reviews) |
| Number of ratings | **3.9K** | 19 |
| Positive reviews | **80.2% of reviews** | 68.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 7 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#137** | — |
| Size | 66 MB | 4 MB |
| Requires iOS | **13.4** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ahafonau](https://appshunter.io/developer/319585607) | [NEC Corporation](https://appshunter.io/developer/423274625) |

## What reviewers say

### Spyglass

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

**Currently charting:** #137 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


### GNSS View

[App page](https://appshunter.io/ios/app/gnss-view/id924350018)

Visualize the positions of satellite navigation systems like QZSS and GPS in the sky. View satellite arrangements on a radar or through augmented reality from your current location. Supports multiple satellite constellations and customizable display options.

**Highlights:** Position Radar view of satellites, Augmented Reality (AR) display, Supports QZSS, GPS, GLONASS, BeiDou, Galileo, SBAS, Select specific signal satellites, Set elevation mask angle, Display HDOP and VDOP values

**In-app purchases:** none


## Frequently asked questions

### Is Spyglass free?

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

### Is GNSS View free?

GNSS View is free to download, with no in-app purchases.

### Which has better reviews, Spyglass or GNSS View?

Spyglass is rated higher. Spyglass averages 4.7 out of 5 from 3.9K ratings, while GNSS View averages 4.3 from 19 ratings.

### Do Spyglass or GNSS View have ads?

Spyglass shows ads; GNSS View does not.

### Which is updated more often, Spyglass or GNSS View?

Spyglass ships an update every 6 weeks, and GNSS View every 7 months. Most recently, Spyglass was updated on October 27, 2026 and GNSS View on October 24, 2026.

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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.*