iNavX vs Anchor Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iNavX
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.
- Worldwide marine chart access
- Real-time GPS plotting
- Waypoint and route management
- GRIB weather forecasts
- AIS integration
- Nautical instrument connectivity
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Marine navigation is made easy with iNavX - the world's #1 handheld Chartplotter. Access marine charts, maps, weather, AIS and more! iNavX is the only app to give you complete worldwide chart coverage, from all your favorite charts providers, including the ALL NEW iNavX Professional+ Chart series! Fully enabled with one-touch access, iNavX gives users access to the broadest set of marine charts and maps from multiple providers including: • iNavX Professional+ Charts • Blue Latitude • CHS • Explorer • Theyr Weather • Waterway Guide • … and more How does iNavX take handheld marine navigation to the next level? • Sailors - Plan sailing routes with waypoint and route management. Get proactive sail management with GRIB weather forecasts and then keep watch with AIS overlays and integration with your onboard systems. Plus, you can remember your great sailing locations by geotagging photos. • Boaters - Stay up to date on boating conditions with forecasts that include currents, winds, and swells. Manage your boating equipment with nautical instrument integration and then save great boating routes to share with the track log. • Anglers - Discover new fishing spots by scouting out holes and inlets. Locate the best fishing conditions by identifying cold fronts and save your best fishing spots with unlimited markers. Advanced features - iNavX is the most feature rich app available for all sailing and boating needs at a great price: Advanced Chart Plotter • Plot your position in real-time using your device's built-in GPS • Pan, zoom, and rotate charts (including course up) • Print detailed charts to use in combination with the app Advanced Navigation • Create waypoints and plan routes to navigate between them • Track log allows you to record your route • Import/export data in KML (Google Earth) or GPX format Advanced Instrumentation • Supports NMEA data over TCP/IP (using Wifi) • Integrates with external GPS, AIS receivers & transponders • Connect nautical instruments: Depth, Speed, Wind, Engine, Batteries, etc. Essential Toolkit • GRIB weather forecast • Tides/currents • Anchor alarm • AIS integration • Port/navaid search Download iNavX TODAY and automatically receive a complimentary copy of the official and up-to-date high-resolution NOAA RNC United States marine raster charts. REVIEWS “iNavX is the original and still one of the best navigation apps.” – Practical Sailor “The most full-featured navigation app around and viewed by many as the standard” – Sail Magazine "The #1 recommended marine charting app" - iMarineApps iNavX is Compatible with: Theyr Weather, Waterway Guide, AIS, Brookhouse, DigitalYacht, ShipModul, vYacht, Vesper Marine, NMEA 2000, Chetco and more. NEW CHART STORE Purchase all your favorite charts. Chart subscriptions vary by chart and provider from $9.99 to $199.99 annually, charged to your iTunes Account, which will automatically renew unless cancelled at least 24 hours before the end of the current period. Auto-renew can be turned off anytime by going to your Account Settings in iTunes after purchase. No cancellation of the current subscription is allowed during active subscription period. NOTE: Continued use of GPS running in the background can dramatically decrease battery life. MORE INFO Website: http://inavx.com/ User's Guide: http://inavx.com/help/ Terms of Use: http://inavx.com/terms Privacy Policy: http://inavx.com/privacy
Anchor Plus
This app provides advanced anchor alarm functionality with features like Siri integration, Home Screen widgets, and Apple Watch control. It also includes weather forecasts, man overboard alerts, and a map view with drift history for enhanced safety and convenience while boating.
- Siri Shortcuts and voice commands
- iOS14 Home Screen widgets
- Apple Watch remote control
- Email status updates and alarm alerts
- Man Overboard (MOB) alerts
- Map view with drift history
- Current and 7-day weather forecast
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More than just an anchor alarm. Enjoy these great features: - Use Siri Shortcuts and voice commands to set the anchor alarm - Set the alarm during anchoring (current position) or afterwards (bearing & distance) or coordinates - Support for iOS14 Home Screen widgets - Day and night theme, metric or imperial, various alarms - Apple Watch remote control, set the anchor from your watch - Receive email status updates and alarm alerts on another device - Scan the QR code and monitor the anchor status from another device - Man Overboard provides bearing to steer and distance back to MOB point - Map view with drift history - Current and 7 day weather forecast with wind alerts - Tropical weather from the top severe weather providers around the globe - Compass and anchor retrieval tool with bearing and distance to anchor - Support for MFi external bluetooth GPS on WiFi only devices - Use the anchor assistant to determine the correct scope and provide a visual representation of where your vessel should be after the anchor is set - Switch language from with the app - Airdrop data to another device - Send text alerts to another device via WhatsApp or Signal
Screenshots
Verdict
iNavX and Anchor Plus both sit at 4.8 stars, but that hides the real split: 100% of Anchor Plus's written reviews are positive against 44% of iNavX's. Anchor Plus also leads on in-app purchases (none vs 11) and ads (none vs shown). iNavX's advantage is price (Free vs $1.99) and ratings volume (22K vs 7). On rating, update cadence, chart position and device support 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
iNavX is free to download; Anchor Plus costs $1.99 up front. iNavX sells 11 in-app purchases, starting at $9.99 per month. Anchor Plus asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for iNavX against 4.7 for Anchor Plus. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 44% of iNavX's written reviews are positive against 100% of Anchor Plus's.
iNavX ships an update every 5 weeks, Anchor Plus monthly. The most recent releases landed on September 29, 2026 and September 20, 2026 respectively.
| Parameter | iNavX | Anchor Plus |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.8 (22K ratings) — better | 4.7 (7 ratings) |
| Positive reviews | 43.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 22K — better | 7 |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | #101 — better | #179 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 298 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | NavX Studios LLC | Roy Cadman |
Customer experience
iNavX
Anchor Plus
Bugs and requests
iNavX
Reported bugs
3 issues- Inability to remove waypoints
- Inconsistent behavior when transitioning International Date Line
- Disappearing or missing chart data
Requested features
5 requests- 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
Anchor Plus
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iNavX
- Theyr Premium - Mobile (Monthly) for iOS$9.991 Month
- iNavX Professional+ USA$29.991 Year
- Navionics+ USA/Canada (iPhone)$29.991 Year
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- Navionics+ Caribbean (iPhone)$44.991 Year
- Theyr Premium Weather1 Year trial$49.991 Year
- iNavX Professional+ USA Canada$59.991 Year
- C-MAP World Chart$59.991 Year
- Explorer Chartbooks - Bahamas$69.991 Year
- Navionics+ USA/Canada (iPad)$79.991 Year
- Navionics+ Caribbean (iPad)$79.991 Year
- AIS Live$99.991 Year
Anchor Plus
No in-app purchases









