iNavX vs Tide Graph
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
Tide Graph
This app provides interactive tide graphs with over 10 billion predictions for US coastal stations. It also displays sunrise, sunset, moonrise, moonset, and moon phases. Save locations and graphs for easy access.
- Interactive tide graphs
- Sunrise, sunset, moonrise, moonset tracking
- Moon phase display
- Save recent locations
- GPS location finder
- Save graphs for later
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- Provided over 10 billion predictions - Supports iOS 11+, Watch OS 4.3+, iPhone 7+ Tide Graph uses the harmonic predictions from thousands of US coastal stations and presents them in a fun and interactive graph. And now, in version 2.0 you also get an intuitive graph that shows sunrise, sunset, moonrise, moonset, and moon phase at a glance. Save recent locations, find locations using GPS location, and save graphs for later. Tides have a great influence on the lives of boaters, fishermen, surfers, coastal communities, marine life, and vacationers just to name a few. Directly or indirectly, the great flow of our massive ocean bodies of water impact the daily lives of everyone on this planet. The cyclical movement of the Earth's tides are caused by a combination of the gravitational forces of the sun and moon as well as the shape of the costal region. Unlike simple tide clocks that you can buy in novelty stores, more accurate tide predictions use special data gathered by instruments located at each tide station. The data from these measurements are used to determine the harmonic components which then feed into the mathematical algorithms which predict tides for the future. The end results are tested for accuracy and adjustments are made as necessary. Tide Graph has US owned Tide Stations Only. An internet connection is required to get the latest tide graph. - See TideGraph.com for a complete list of stations.
Screenshots
Verdict
The clearest difference is price: iNavX at Free against Tide Graph's $1.99. iNavX also leads on ratings volume (22K vs 1.6K). Tide Graph's advantage is ads (none vs shown) and review sentiment (70% vs 44%). On rating, update cadence, in-app purchases and monetization model 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; Tide Graph costs $1.99 up front. iNavX sells 11 in-app purchases, starting at $9.99 per month and Tide Graph sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for iNavX against 4.8 for Tide Graph. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 1.6K, 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 70% of Tide Graph's.
iNavX ships an update every 5 weeks, Tide Graph every 6 weeks. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | iNavX | Tide Graph |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.8 (22K ratings) | 4.8 (1.6K ratings) |
| Positive reviews | 43.7% of reviews | 70.3% of reviews — better |
| Number of ratings | 22K — better | 1.6K |
| Update frequency | Every 5 weeks — better | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #116 | #32 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple TV, Apple Watch — better |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 298 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | NavX Studios LLC | Brainware LLC |
Customer experience
iNavX
Tide Graph
User reviews
iNavX
From 22K App Store ratingsWhat we love
- 🚀 Accurate and precise navigation
- 📊 Comprehensive charting and navigation features
- 🛠️ Customizable instrument settings
- 🔄 Redundancy across devices
- 💨 Reliable performance over many years
Room to improve
- 🤔 Clunky and unintuitive user interface
- 🗺️ Cumbersome chart management and downloading
- 🔋 Battery drain issues
- 💰 Expensive subscription model for charts
- 🐛 Stability issues and crashes
Tide Graph
From 1.6K App Store ratingsWhat we love
- ⭐ Accurate tide data
- 📊 Excellent visual representation of tides
- 🗓️ Detailed tide information including moon phases
- 🔍 Reliable for many locations
- 💰 Good value for the price
Room to improve
- 🌐 Requires internet connection to function
- 🗺️ Limited to US and Alaska locations only
- 🔍 Difficult to find desired location
- 🕰️ Slow loading times in some cases
- 🔧 Compatibility issues with newer devices
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
Tide Graph
Reported bugs
3 issues- Tide data inaccuracies reported in some locations
- Crashes and freezes when switching between stations
- Date/time display issues in certain cases
Requested features
5 requests- Offline mode for tide data
- Ability to save favorite locations
- Larger tide graph for better visibility
- Option to switch between metric and imperial units
- Automatic updates to latest tide information
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
Tide Graph
- 2015 Tides and Currents$0.99
- 2016 Tides and Currents$0.99
- 2017 Tides and Currents$0.99
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- 2018 Tides and Currents$0.99
- 2019 Tides and Currents$0.99
- 2020 Tides and Currents$0.99
- 2021 Tides and Currents$0.99
- 2022 Tides and Currents$0.99
- 2023 Tides and Currents$0.99
- 2024 Tides and Currents$0.99
- 2026 Tides and Currents$0.99







