# iNavX vs Sign & Glide

The clearest difference is in-app purchases: Sign & Glide at none against iNavX's 10. Sign & Glide also leads on ads (none vs shown) and rating (5.0 vs 4.8). iNavX's advantage is ratings volume (22K vs 1) and chart position (#106 vs unranked). On price, update cadence and device support there is nothing between them.

Both are free to download. iNavX sells 10 in-app purchases, starting at $9.99 per month. Sign & Glide asks for nothing beyond the download.

Sign & Glide holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 1, so its average is the more settled of the two.

iNavX ships an update every 5 weeks, Sign & Glide every 2 months. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | iNavX | Sign & Glide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (22K ratings)](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sign-and-glide/id6756632140/reviews)** |
| Number of ratings | **22K** | 1 |
| Positive reviews | 43.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#106** | — |
| Size | 298 MB | 33 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NavX Studios LLC](https://appshunter.io/developer/286616283) | [Compass Marine Services Inc](https://appshunter.io/developer/1196614725) |

## What reviewers say

### iNavX

[App page](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280)

**Currently charting:** #106 Top Grossing · Navigation (US App Store)

This app provides comprehensive marine navigation tools, including worldwide chart coverage, weather forecasts, and AIS integration. It allows users to plan routes, track their position, and connect with onboard instruments for a complete boating experience.

**Highlights:** Worldwide marine chart access, Real-time GPS plotting, Waypoint and route management, GRIB weather forecasts, AIS integration, Nautical instrument connectivity

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theyr Premium - Mobile (Monthly) for iOS | $9.99 | per month |
| iNavX Professional+ USA | $29.99 | per year |
| Navionics+ USA/Canada (iPhone) | $29.99 | per year |
| Navionics+ Caribbean (iPhone) | $44.99 | per year |
| Theyr Premium Weather | $49.99 | per year |
| iNavX Professional+ USA Canada | $59.99 | per year |
| C-MAP World Chart | $59.99 | per year |
| Navionics+ USA/Canada (iPad) | $79.99 | per year |
| Navionics+ Caribbean (iPad) | $79.99 | per year |
| AIS Live | $99.99 | per year |

**What reviewers like**

- 🚀 Accurate and precise navigation
- 📊 Comprehensive charting and navigation features
- 🛠️ Customizable instrument settings
- 🔄 Redundancy across devices
- 💨 Reliable performance over many years

**What reviewers complain about**

- 🤔 Clunky and unintuitive user interface
- 🗺️ Cumbersome chart management and downloading
- 🔋 Battery drain issues
- 💰 Expensive subscription model for charts
- 🐛 Stability issues and crashes

**Reported bugs**

- Inability to remove waypoints
- Inconsistent behavior when transitioning International Date Line
- Disappearing or missing chart data

**Requested features**

- Seamless chart switching and panning
- Integrated tidal and current data
- Support for more chart types and providers
- Improved route planning and editing tools
- Automatic chart updates and management


### Sign & Glide

[App page](https://appshunter.io/ios/app/sign-and-glide/id6756632140)

This app provides 24/7 on-water towing and assistance for registered vessels for a flat annual fee. Enjoy unlimited towing coverage without hidden membership costs or extra charges.

**Highlights:** 24/7 emergency dispatch, Unlimited on-water towing, Flat annual fee, No membership fees, Affordable towing services

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iNavX free?

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

### Is Sign & Glide free?

Sign & Glide is free to download, with no in-app purchases.

### Which has better reviews, iNavX or Sign & Glide?

Sign & Glide is rated higher. iNavX averages 4.8 out of 5 from 22K ratings, while Sign & Glide averages 5.0 from 1 ratings.

### Do iNavX or Sign & Glide have ads?

iNavX shows ads; Sign & Glide does not.

### Which is updated more often, iNavX or Sign & Glide?

iNavX ships an update every 5 weeks, and Sign & Glide every 2 months. Most recently, iNavX was updated on November 9, 2026 and Sign & Glide on November 5, 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.*