Comparison

iNavX vs Progressive Sign&Glide

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Worldwide marine chart access
  • Real-time GPS plotting
  • Waypoint and route management
  • GRIB weather forecasts
  • AIS integration
  • Nautical instrument connectivity
Features
Read full description

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

About

Progressive Sign&Glide

This app provides affordable, 24/7 on-water towing and assistance for registered vessels. For a single flat annual fee, users receive unlimited towing coverage and emergency dispatch services without additional membership fees or hidden costs.

Highlights
  • 24/7 emergency dispatch
  • Unlimited on-water towing
  • Flat annual fee
  • No membership fees
  • Affordable towing
Features
Read full description

Sign & Glide is your answer to affordable on-water towing services. For one flat, annual fee, you will receive 24-hour emergency dispatch services and unlimited on-water towing coverage for your registered vessel. Towing assistance is available any time you need it, and there's no membership fees or unnecessary extras like other tow programs.

Screenshots

iNavX4 screens
Progressive Sign&Glide4 screens

Verdict

The call

The clearest difference is rating: iNavX at 4.8 against Progressive Sign&Glide's 2.3. iNavX also leads on review sentiment (44% vs 18%) and ratings volume (22K vs 15). Progressive Sign&Glide's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, update cadence, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

iNavX holds the better App Store score, 4.8 against 2.3. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 44% of iNavX's written reviews are positive against 18% of Progressive Sign&Glide's.

UpkeepUpdate frequency

iNavX ships an update every 5 weeks, Progressive Sign&Glide every 6 weeks. The most recent releases landed on November 10, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 5 level
iNavX versus Progressive Sign&Glide: the parameters behind the verdict, then further details
ParameteriNavXProgressive Sign&Glide
PriceFreeFree
Rating4.8 (22K ratings) — better2.3 (15 ratings)
Positive reviews43.8% of reviews — better18.2% of reviews
Number of ratings22K — better15
Update frequencyEvery 5 weeks — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFreemium
Best chart rank#117 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.012.4 — better
Further details — not scored
Size298 MB30 MB
Age rating4+4+
DeveloperNavX Studios LLCCompass Marine Services Inc

Customer experience

iNavX

All ratings21,564 ratings
Positive95.9%
Neutral2.4%
Negative1.7%
Written reviews461 reviews
Positive43.8%
Neutral6.1%
Negative50.1%

Progressive Sign&Glide

All ratings11 ratings
Positive27.3%
Neutral9.1%
Negative63.6%
Written reviews33 reviews
Positive18.2%
Neutral6.1%
Negative75.8%

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

Progressive Sign&Glide

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

iNavX

Subscriptions10
  • Theyr Premium - Mobile (Monthly) for iOS$9.991 Month
  • iNavX Professional+ USA$29.991 Year
  • Navionics+ USA/Canada (iPhone)$29.991 Year
Show 7 more
  • Navionics+ Caribbean (iPhone)$44.991 Year
  • Theyr Premium Weather$49.991 Year
  • iNavX Professional+ USA Canada$59.991 Year
  • C-MAP World Chart$59.991 Year
  • Navionics+ USA/Canada (iPad)$79.991 Year
  • Navionics+ Caribbean (iPad)$79.991 Year
  • AIS Live$99.991 Year
None

Progressive Sign&Glide

No in-app purchases

Questions

Is iNavX free?
iNavX is free to download, with in-app purchases available.
Is Progressive Sign&Glide free?
Progressive Sign&Glide is free to download, with no in-app purchases.
Which has better reviews, iNavX or Progressive Sign&Glide?
iNavX is rated higher. iNavX averages 4.8 out of 5 from 22K ratings, while Progressive Sign&Glide averages 2.3 from 15 ratings.
Do iNavX or Progressive Sign&Glide have ads?
iNavX shows ads; Progressive Sign&Glide does not.
Which is updated more often, iNavX or Progressive Sign&Glide?
iNavX ships an update every 5 weeks, and Progressive Sign&Glide every 6 weeks. Most recently, iNavX was updated on November 10, 2026 and Progressive Sign&Glide on November 2, 2026.

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