TZ iBoat – Marine Navigation

TZ iBoat – Marine Navigation

Boat GPS, Charts, AIS, Tides

847 ratings
378 reviews
#52 in top-grossing Navigation
🗺️ Navigation
☀️ Weather
Free
In-App Purchases

Details

  • Released
  • Updated
  • January 2, 2018
  • July 17, 2026

Features

TZ iBoat – Marine Navigation video #1 for iPhone
TZ iBoat – Marine Navigation video #2 for iPhone
TZ iBoat – Marine Navigation screenshot #3 for iPhone
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TZ iBoat – Marine Navigation screenshot #7 for iPhone
TZ iBoat – Marine Navigation screenshot #8 for iPhone
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TZ iBoat – Marine Navigation screenshot #10 for iPhone
TZ iBoat – Marine Navigation screenshot #11 for iPhone
TZ iBoat – Marine Navigation screenshot #12 for iPhone
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About

Navigate the seas with advanced marine charts, GPS, and AIS data, even offline. This app offers detailed bathymetry, community-contributed map data, and dynamic features for safe boating, sailing, and fishing.

Offline marine charts
GPS and route planning
AIS Online tracking
Community map contributions
Dynamic mooring and lighting
Advanced fishing tools
Tides and tidal currents
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What users say

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+1

What's New in TZ iBoat

4.0.6

July 17, 2026

Version 4.0.6 improvements: • Fixed an issue where users were repeatedly asked to complete their **Boat Profile** at startup, even when it was already completed. • Improved application stability.

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Subscription plans

Europe West

Atl French coast-North Spain-Portugal-Marocco

£39.991 Year
7 Days trial
How to cancel TZ iBoat subscription ⁉️
7

In-App Purchases

$49.99

Radar module

Display the FURUNO DRS4W radar on your charts

Charts

Top Grossing

📈 52+17

Navigation

This app rose +17 positions in Navigation chart.

Last updated on July 20, 2026.

Events

Read more about Redesigned. Easier to Use.

Redesigned. Easier to Use.

A cleaner, smarter way to navigate at sea.

Jun 3, 2026 Jul 4, 2026

Read more about A Clearer View of The Bahamas

A Clearer View of The Bahamas

New bathymetric chart data across The Bahamas

May 3, 2026 Jun 3, 2026

Read more about New: Route Assist Feature

New: Route Assist Feature

Create routes effortlessly and automatically.

Jun 6, 2024 Jul 7, 2024

User reviews

Unkomplizierter Urlaub

Dank TZ iBoat ein völlig unkomplizierter Törn und Urlaub rund um Sizilien und der unzähligen Inseln und Buchten. Habe definitiv meine künftige Navigationsapp gefunden! 🤗

Problème majeur de sécurité en mer : l’affichage superposition instruments/carte ont été supprimé

Bonjour,

Nous utilisons TZ iBoat dans un cadre de navigation réel et de formation de skippers, y compris de professionnels.

La version 4.0.3 semble avoir supprimé ou rendu inaccessible l’affichage simultané de la cartographie et des données de navigation essentielles (COG, SOG, cap, position, profondeur, vent, etc.).

Si tel est le cas, cette évolution constitue pour nous une régression majeure.

L’intérêt même d’un logiciel de navigation est de pouvoir visualiser en permanence la situation du bateau sur la carte tout en disposant simultanément des informations de navigation nécessaires à la prise de décision.

En mer, il n’est ni pratique ni souhaitable d’avoir à basculer continuellement entre un écran “Carte” et un écran “Instruments” pour obtenir des informations qui doivent être consultées ensemble.

Cette organisation ne correspond ni à l’usage réel de la navigation ni aux principes de sécurité que nous enseignons.

Aujourd’hui, nous formons des plaisanciers, des chefs de bord et des professionnels. Nous avons besoin de pouvoir afficher simultanément la cartographie et les données de navigation. Sans cette fonctionnalité, il devient difficile d’envisager l’utilisation de TZ iBoat comme outil principal de navigation et de formation.

Pouvez-vous nous confirmer :

* si cette fonction existe toujours dans la version 4.0.3 ;
* comment la réactiver le cas échéant ;
* ou s’il s’agit d’une suppression volontaire de l’interface.
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Frustrating

Keeps going into 3D view when I scroll or zoom, despite 3D settings being turned off. I don’t ever want 3D. Don’t remember the older version doing this.

New version glitchy, keeps shutting down

I’ve used tz iBoat for years with great success. Once I installed the latest version on 8 June 2026 it has become incredibly unstable and shuts down frequently. Really not even usable. I created a service ticket. Hopefully problem can be resolved quickly but until it is I suggest avoiding the new version

Update 25 June -

Ver. 4.0.3 has resolved the problem. Thanks for fixing it so quickly
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Response from developer

Hello! Sorry to hear that. We indeed discovered some issues in v4.0; developers worked hard (and still work) to fix most of them. Please could test latest version 4.0.3, there is a big chance that your stability/performance issue was fixed. Could you have a try? If you still have the problem, please could you contact Mathieu with this email : productteam@mytimezero.com I will be happy to check the problem with you.

This is a great app, but…

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
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User experience

🐞

Reported Bugs

3 issues

GPS position not updating reliably while moving

Bug

Radar overlay not functioning properly

Bug

Compatibility issues with older devices or iOS versions

Bug

Requested Features

5 requests

Automatic routing and trip planning

Feature

Improved satellite imagery and overlays

Feature

Better integration with other marine electronics

Feature

More customization options for data displays

Feature

Ability to mirror camera feeds as a rear-view

Feature

FAQ

What does TZ iBoat do?

TZ iBoat is a comprehensive marine navigation app designed for coastal boating, sailing, and fishing. It provides offline access to detailed marine charts, GPS functionality, AIS tracking, tide information, and specialized tools for anglers.

What are the key features of TZ iBoat?

Key features include revolutionary TZ MAPS with integrated raster and vector data, AIS Online for extended target tracking, Community Maps for collaborative chart updates, Dynamic Moorings for anchorage suggestions, Dynamic Lights for navigational aid visualization, and Smart Search for quick information retrieval.

How much does TZ iBoat cost?

The app offers a 7-day free trial for its TZ MAPS. While the core app is free, it includes in-app purchases for additional features and subscriptions, such as the SPORTFISHING OCEAN-O SUBSCRIPTION for advanced weather and oceanographic data.

Is TZ iBoat compatible with my device?

The description does not specify device compatibility. However, as a mobile application, it is designed for smartphones and tablets. Users should check the app store listing for specific operating system requirements.

Who would benefit from using TZ iBoat?

TZ iBoat is ideal for anyone who navigates the seas, including recreational boaters, experienced sailors, and avid fishermen. Its advanced features cater to both basic navigation needs and specialized requirements for finding fish and safe anchorages.