TZ MAPS: The Future of Nautical Charts

For centuries, navigators sailed with help from the stars, but most importantly, paper charts. They were the only way to plan and follow a safe route. But today, many skippers are moving away from paper charts and going digital—many of them choosing TZ MAPS.

This post explains why. It shows how you can try TZ MAPS yourself with a free 7-day trial. The trial is available in the TZ iBoat boating app for iOS.

What’s So Great About Paper Charts?

Paper charts aren’t “wrong” or “outdated.” They are a reliable method of navigation and still offer real benefits to navigators, like:

  • Not needing any batteries or software to work
  • An easy-to-use “big picture” overview of your area
  • Serving as a solid backup if your electronics fail
  • That sense of nostalgia for the way things used to be

If you enjoy plotting with a pencil, paper charts can still be part of your navigation setup. But fewer and fewer navigators are using paper charts as their primary navigation tool, and here’s why.

Why Are Navigators Going Digital?

Put simply, modern boating has changed a lot. We move between areas more often. Coastlines, buoys, and depths are updated more regularly. We expect fast answers to questions like: “How far?” “How long?”, and “How deep?”.

With paper charts, this can create real problems. Updates are slow and manual. You need several charts to cover even a modest distance. There’s no GPS position on the paper. Nighttime or bad weather can make small details hard to read. And in many parts of the world, paper charts are slowly being phased out.

So, What Is TZ MAPS and Why Is It So Popular?

TZ MAPS is the next generation of nautical charts from TIMEZERO. TZ MAPS offers great value. It includes multiple chart formats. It also has advanced features and the latest data. TZ MAPS includes:

  • Raster charts – digital versions of official paper charts from hydrographic offices, with the same familiar look and symbols
  • Vector charts – modern, interactive charts where you can zoom and tap features for more information
  • Detailed land information – roads, coastlines, and landmarks that help you recognize what you see around you
  • High-resolution satellite photos – to better understand harbors, anchorages, and your surroundings
  • High-resolution BathyVision – very detailed depth contours that reveal underwater structures and topography

All of this is packaged as a single TZ MAPS area. You don’t have to choose between raster, vector, or bathymetry. When that data exists for your area, you get it all.

How Do I Get TZ MAPS?

Easy! TZ MAPS is available on all TIMEZERO software. The most affordable option is TZ iBoat, TIMEZERO’s marine navigation app for iPhone and iPad.

TZ iBoat transforms your device into a comprehensive navigation system, that rivals even some of the best systems out there. By accessing TZ MAPS via your TZ iBoat app, you’ll have everything you need for both fun and serious navigation. That means charts, weather forecasts, GPS, Route Assist, and a whole lot more!

In short, TZ MAPS provides the chart data, and TZ iBoat provides the interface that brings it to life.

How Does TZ MAPS Compare?

Here’s a simple comparison to make the differences clear.

FeaturePaper ChartsTZ MAPS
Continuous UpdatesNoYes
Multiple FormatsRasterRaster, Vector, Bathymetry
InteractiveNoYes
Mooring AssistanceNoYes
Route AssistNoYes
Estimated DistanceNoYes
GPSNoYes
Community Data SharingNoYes

Still Not Convinced?

How about this? Paper charts can be expensive, but TZ MAPS on TZ iBoat offers a different approach: you can use a device that you already own; you pay an affordable subscription for your TZ MAPS area—which are always up-to-date—instead of buying stacks of individual charts; and, you can try TZ MAPS free for 7 days before spending a single cent.

That free trial is a great opportunity to navigate your usual area and plan a real trip to see if you like it, with zero consequences. Now to the important question…

Do You Still Need Paper Charts?

Many experienced skippers choose a hybrid approach: TZ MAPS + TZ iBoat as their primary, day-to-day navigation tool, and paper charts as a backup—especially for longer trips or remote navigation.

This way, you get the best of both worlds: the speed, clarity, and power of modern digital charts, and the comfort of knowing you have a usable backup if something goes wrong.

So… Are You Ready to Try TZ MAPS Yourself?

You don’t have to guess whether TZ MAPS is right for you—you can test it on your own boat, in your own waters. Just:

  1. Download TZ iBoat from the App Store on your iPhone or iPad
  2. Open the app and select the TZ MAPS area that covers where you usually sail or cruise
  3. Start your 7-day free trial
  4. Plan a simple day trip and follow it with TZ MAPS on the water

You’ll see the difference instantly: cleaner charts, easy planning, and more awareness and peace of mind.

Paper charts had their golden age. Now it’s time for TZ MAPS. Enjoy the next chapter of navigation.

What Is the Best Marine Navigation App for iOS?

Navigating on the water has never been easier, thanks to the growing number of marine navigation apps available for iOS. Whether you’re a weekend boater, a coastal cruiser, or a serious angler, having a reliable app on your iPhone or iPad can help you avoid hazards, plan smarter routes, and enjoy your time on the water with confidence.

But with so many options, which app is truly the best for iOS users in 2026?

Let’s take a look at the top contenders and the features that matter most—culminating in our recommendation for the most complete and powerful boating app available today.

What Boaters Want in a Navigation App

Before diving into the apps, here are the key features boaters consistently look for:

  • Accurate and up-to-date charts
  • Offline access to maps and weather
  • AIS and radar overlays
  • Smart route planning
  • Anchor alarms and safety alerts
  • Weather forecasts and tide data
  • Integration with onboard systems
  • Ease of use on mobile devices
A person holding a smartphone displaying a marine navigation app, with a boat moored in the background on calm water during sunset.

Top Marine Navigation Apps for iOS

🥇 TZ iBoat – Best Overall for iOS

TZ iBoat stands out as the most complete marine navigation app for iOS. Designed by TIMEZERO, TZ iBoat offers high-resolution raster and vector charts, satellite imagery, and bathymetric data through its TZ MAPS subscription. This subscription unlocks access to the latest chart updates and advanced visual layers, making it a powerful tool for both recreational and professional mariners.

Why TZ iBoat is the best:

  • TZ MAPS: A single subscription offers access to raster, vector, satellite, and bathymetric charts
  • Dynamic Moorings: Smart anchoring suggestions based on wind and protection
  • AIS & Radar: Compatible with Furuno hardware and NMEA systems
  • Optional Advanced Weather Models: Includes GFS, ICON, AROME, and more
  • Offline Access: Charts and weather available without internet
  • Customizable Interface: Choose from multiple chart styles and overlays
  • Safety Tools: Anchor alarms, MOB function, programmable alerts

TZ iBoat is ideal for boaters who want a professional-grade app that works seamlessly on iPhone and iPad. It’s especially useful for sailors and anglers who need advanced features without the cost.

Promotional banner for TZ iBoat app highlighting a 7-day free trial, featuring a blue background with topographic map elements, and showcasing app screenshots with nautical charts.

🥈 Navionics – Great Chart Coverage

Navionics is a long-time favorite among boaters. It offers detailed vector charts, auto-routing, and community-sourced updates. It’s a good choice for users who want reliable charting and weather data.

Pros

  • Good global chart coverage
  • Auto-routing and SonarChart features
  • ActiveCaptain community integration

Cons

  • Some users report UI issues and crashes
  • Price

🥉 Savvy Navvy – Modern and User-Friendly

Savvy Navvy is a newer app with a user-friendly design and smart routing features. It’s built with sailors in mind and includes wind and tide overlays.

Pros

  • Intuitive interface
  • Wind and tide-aware routing
  • Clear charts

Cons

  • Charts may lack fine detail in some areas
  • Missing the advanced features of other apps

Conclusion: TZ iBoat is the Best Marine Navigation App for iOS in 2026

If you’re looking for the most complete, reliable, and feature-rich marine navigation app for iOS, TZ iBoat is the clear winner. It offers everything boaters, sailors, and fishermen need, from high-quality charts and weather data to advanced features. While TZ MAPS requires a subscription, the value it delivers, especially when paired with optional modules and Furuno compatibility, makes it a top-tier choice for serious navigation.

Whether you’re navigating coastal waters, enjoying a day of sport fishing, or planning your next sailing trip, TZ iBoat offers everything you need to stay safe, informed, and in control.

Try TZ iBoat today and experience the future of marine navigation on your iPhone or iPad.

Promotional banner for TZ iBoat marine navigation app featuring a blue background with the app logo and a testimonial highlighting its ease of use.