Just launched: TZ iBoat 4. A complete redesign with enhanced weather & seamless navigation. Upgrade now and experience the difference.
Your next-generation chartplotter.
Navigate with the world’s #1 marine charts app for coastal boating, sailing, and fishing.
Marine GPS, nautical charts, AIS Online, tides & tidal currents, anchoring, marine weather, radar, sounder, and NMEA data — everything you need for safer navigation at sea.
Built for sailors, boaters, and fishermen who need reliable navigation anywhere, online or offline.
THE SMARTEST AND CLEAREST NAVIGATION INTERFACE AT SEA
A cutting-edge interface makes navigation clearer and faster:
• TZ Bar: quick access to key features
• Dedicated screens: Weather, Fishing, NavData, Logbook, Mooring, Tides, Sounder
• Cleaner chart view, easier to read
• Customizable interface for faster access
• Modern design focused on readability
WHAT YOU CAN DO WITH TZ iBoat
• Navigate with marine GPS and nautical charts
• Monitor AIS targets locally and globally
• Plan routes and anchor safely
• Access tides, currents, and weather forecasts
• Fish smarter using oceanographic data
FOR SAILORS & BOATERS – Navigate safely
• TZ MAPS: vector, raster, satellite, and bathymetry charts
• SMART SEARCH: find marinas, buoys, tide stations, routes
• DYNAMIC LIGHTS: real-time light sectors
• DYNAMIC MOORINGS: wind-aware anchorage
• Precise GPS for coastal navigation
AIS & SAFETY – Stay aware beyond your horizon
• AIS ONLINE: global AIS targets via internet (Essential plan)
• Share AIS data with the community
• Radar and onboard instrument integration
• Real-time traffic awareness for safer navigation
FOR FISHERMEN – Gain the edge
Turn ocean data into real fishing results:
• Identify productive zones using SST, chlorophyll, currents, altimetry (Elite plan)
• Spot fish-holding conditions faster
• BATHYVISION: high-resolution bathymetry with contour lines
• Target high-potential areas with precision
• EVENT & CATCH: log and analyze catches on nautical charts
WEATHER – Clearer and more useful
• Dedicated Weather screen
• Real-time forecasts and offline access
• Rain Radar with lightning data
• High-resolution models available in Premium plan
• Iridium GO! compatibility
CONNECTIVITY & PRECISION
• NMEA connectivity: manage and prioritize data sources
• Connect AIS, radar, autopilot, and instruments
• Latitude/longitude keyboard optimized for use at sea
• Easy coordinate entry with multiple formats
COMMUNITY & ECOSYSTEM
• COMMUNITY MAPS: share local knowledge (hazards, POIs, marinas)
• Contribute and improve charts
• Trusted by 500,000+ boaters worldwide
SUBSCRIPTION PLANS
Choose the plan that fits your needs:
• Essential: AIS Online, onboard instruments, autopilot integration via Wi-Fi NMEA
• Premium: Essential + high-resolution forecasts, Rain Radar, multiple models, comparison
• Elite: Premium + ocean layers (SST, Chlorophyll, SSH, Currents).
Monthly and annual plans available, with savings on yearly options. Core features remain available for free.
CHARTS AND DATA PLANS SUBSCRIPTIONS:
The payment will be debited from the Apple account once the purchase is confirmed.
The subscriptions and automatic renewals can be managed by entering the account settings after making the purchase.
Any unused part of a free trial period, if offered, will be lost when a subscription is purchased.
Terms of use: https://mytimezero.com/eula/
Privacy policy: https://mytimezero.com/privacy-statement/
I’ve been using the computer version of TimeZero and older versions of Nobeltec for a very long time, and this has almost all the features of the computer version. It seems like they replaced the track line recording feature with the ability to share with your followers, which is kind of annoying, but not too big of a issue. For $20 a year it is not the professional navigation program that the $3000 one for PC is, but it is much better than the other app I had. They also seem to make improvements based on feedback, so I hope they bring back the old way of recording track lines. One other thing, and this is not that much of an issue for average use and is probably less of a problem with the app than the actual GPS in my phone, is that if you’re going slow, as you do while setting a longline, it sometimes doesn’t show the boat icon facing the right way. Again, not too much of a problem for average use, but one of the times it happened I was setting a longline and I thought the boat was pointing towards a 25 fathom sounding on the chart, but the icon was pointing the wrong way and it ended up being 49 fathoms. The other small things that could be improved is it would be nice if you could see the SOG without having the whole sidebar open. Overall, while it has a few small issues, it is great for navigating skiffs and much better than the competition.
Developer Response
Hi Piggings, thank you for your report. Yes it's true that we encourage users to send feedbacks, and we take them in account to improve the product. Sometimes it takes time, but that's what we do.About track line: We noticed that lots of customers were using tracks to record their whole trip, but as they were struggling to manage 30K points limits, we decided to this dedicated feature called "trips"; But indeed we have to put back a kind of track feature for fishermen like you. We are working on it. For the moment, continue to record trips, because all your navigation data is in there.About your posiitoning problem, I don't think it's a TZ iBoat issue. I would like to see your track, I might be able to see if it's a GPS accuracy problem. Send me an email please (product-feedbcak@mytimezero.com)To show permanently SOG, again, just start a Trip (big NAV button in bottom right of the screen); Then the trip bar shows Trip time, distance, but also SOG. These 3 slots are configurable. Mathieu, TZ iBoat product manager
Ease of use
Sailor 1
TZ iBoat is one of the easiest and most complete aids to navigation on the market. The seamless charting works flawlessly, the detailed tides and currents right on the chart make it easy for anyone looking on. There is no time needed for flipping between programs which enables you to keep your eyes out on the water and not always buried in the screen. The distance and bearing feature is so easy ito use that identifying navigation aids and points of land with a hand bearing compass is fast and accurate. iBoat is clearly a fantastic navigation aid that when used with other aids such as hand bearing compasses, depth sounders, binoculars, etc, will help to make your trip as safe as possible. This aid to navigation does so much more including being able to add and remove features from your screen easily in order to keep your screen uncluttered works extremely well. I would rate this Nobeltec product higher than anything else seen on the market today. Look it up and I challenge you to find a more complete easy to use program. Captain Thomson.
Developer Response
Hi Captain! Thank you very much for your report! V2.0 is going to be released (early july 2020), it is even easier to use! Please send us your feedback when it's released and you have played with it.
This is a great app, but…
Captain TJD
I’ve been using this for a few years professionally for deliveries and charters throughout the Caribbean. I’ve always been very happy with its functions and quality of charts, integration of weather and what I think is the best anchor watch available period. My only complaint until now has been that the satellite overlays are very very out of date, 7-8 years in some cases. However the new version is clunky and very frustrating. Weather used to be a simple layer you can turn on or off, but now is a separate tab, which doesn’t open on the same location as where i might have been on the Navigation tab, so then i have to move the chart again to were i want to see the weather. The Anchor tab seemed un-needed as it was just a button, so why make a tab that has to be set up with the layers you want visible. The logbook was always available in Smart Search so also seems like an extra layer of UI for no reason. My biggest complaint is that I can no longer use Smart Search to find and activate a route. When choosing a route from Smart Search the chart zooms out, but the activate icon is greyed out, and it doesn’t show the route unless I click on the start waypoint, but I have hundreds of routes and many share start waypoints, so then i have to change the settings to show arrival waypoints, find the arrival waypoint on the chart, and then i can click activate. What used to take 5 seconds now takes 5 minutes. I love many things about this software and the PC based TimeZero, but am not happy with how clunky version 4 is
Developer Response
Hello, and thank you for taking the time to share your detailed feedback. We also appreciate your loyalty to our products. I’ll address the points you’ve raised.First of all, our mapping service regularly updates satellite images. Unfortunately, for certain areas, we do not have more recent data. Could you please let me know which region is affected by emailing us at ProductTeam@mytimezero.com?Your comment about maintaining the same map view when switching between screens is very relevant. I fully understand that this type of behavior could make checking the weather more seamless. This feature is not currently available, but we’ve taken note of your comment.Regarding the Anchor Screen, our goal was to make this feature more visible and easily accessible by dedicating a specific screen to it.I’m not sure I fully understood your comment about the logbook, which was accessible via Smart Search. Could you please explain this in more detail via email?Finally, regarding the search function and, in particular, activating a route via Smart Search, this is a bug that we’ll be fixing. Sorry for the inconvenience.Marie from the product team
Very Impressed
EchoWhiskey
I have tried all of the sailing apps out there and it’s hard to find one that’s a good balance of functionality and price. I am a long time user of a different popular app, but decided to give this one a try and have been surprised by how much I like it. There are a few features that I wish it had (a better management system for saved tracks) and the companion laptop software is absurdly priced, but the app is worth trying and spending the money for maps. I still haven’t managed to get it connected to Furuno network on the boat I sail on (better instructions on making the network connection work would be nice), but the maps are very nice to view and all the interactions are intuitive and easy.
Developer Response
Thanks a lot for your positive input. Please send an email to our tech support so we can help you to connect to your Furuno network. support@mytimezero.com. Thanks
Explore Tidal Currents Further!
You can now explore Tidal Currents beyond the weather forecast period, independently of your selected weather model.
A new shortcut makes them easier to access from the Weather screen. Weather and SFO data can also be hidden for a clearer chart view.
Anchor Watch Improvement:
• Your existing trail is preserved when Anchor Watch starts.
• Default radius is 30 m and remembers your last setting.
• Smoother editing: no handle jumping or chart movement.
Version 4.1.3
The developer, Nobeltec, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
Contact Info
Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Usage Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Nobeltec, Inc.
Size
448.5 MB
Category
Navigation
Compatibility
Requires iOS 14.2 or later.
iPhone Requires iOS 14.2 or later.
iPad Requires iPadOS 14.2 or later.
iPod touch Requires iOS 14.2 or later.
Apple Vision Requires visionOS 1.0 or later.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.
