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/
Ratings & Reviews
4.0
out of 5
1 Ratings
• Navigate in Landscape Mode
You can now use the Navigation screen in landscape mode on your smartphone, ideal when your phone is mounted or mirrored to a larger display.
You can also display NavData alongside the chart, keeping essential navigation information visible while you navigate.
• Bug fix: Text in dialog boxes now consistently starts with a capital letter.
• Improved application stability.
• Improved Sign in with Apple experience.
Version 4.1.4
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 based, for example, 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
449.3 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 is not open, which can decrease device battery life.