Comparison

TZ iBoat vs Aisea

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TZ iBoat

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.

Highlights
  • Offline marine charts
  • GPS and route planning
  • AIS Online tracking
  • Community map contributions
  • Dynamic mooring and lighting
  • Advanced fishing tools
  • Tides and tidal currents
Features
Read full description

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/

About

Aisea

This navigation app enhances maritime safety by displaying nearby vessel movements and potential collision risks. It also allows users to report hazards, review past voyages, and manage fleets. Communicate with nearby users directly through the app.

Highlights
  • AIS vessel tracking and collision alerts
  • Map editor for reporting hazards
  • Voyage playback and analysis
  • Fleet management tools
  • In-app Push-To-Talk communication
Features
Read full description

◦ Radar mode Aisea App's Radar mode displays the movement of vessels in the vicinity equipped with AIS or using the App on a scalable chart. When it detects a risk of collision, the App will warn you minutes ahead. Aisea brings you peace of mind on the sea. ◦ Map editor and reporting tool Users can report dangerous floating objects from Aisea App, and Map Editors with business accounts can set various areas that require the nearby sailors' attention. Those reported markers may be public and visible on the chart for others or private and hidden. ◦ Voyage playback Playback the past voyages on the web anytime with videos and other voyage data since Aisea automatically saves them as your vessels navigate. These playbacks help investigate in case of accidents and are useful for optimizing navigation courses. ◦ Fleet management The Fleet Management interface is available for affordable Business accounts, letting you keep tabs on your fleet, clues, operators, and anyone you need to communicate for your everyday tasks. You and your operators can access the interface from your PC, smart device from anywhere anytime. ◦ Vessel tracking Aisea monitors vessel locations through Aisea App and AIS stations on the shore and ships. Vessels will be appropriately represented by vessel-shaped icons in scale rather than dots or triangles so that you can grasp the situation intuitively. ◦ In App Push-To-Talk Communicate with nearby users without radio equipment. UX is carefully designed to resemble the Marine VHF radio with plenty of guidance, so the learning curve will be shallow for everyone. Business users can talk within their business or projects.

Screenshots

TZ iBoat4 screens
Aisea4 screens

Verdict

The call

The clearest difference is review sentiment: TZ iBoat at 79% against Aisea's 14%. TZ iBoat also leads on update cadence (every 8 days vs every 5 weeks) and chart position (#97 vs unranked). Aisea's advantage is in-app purchases (none vs 10). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TZ iBoat sells 10 in-app purchases, starting at $2.99 per month. Aisea asks for nothing beyond the download.

UpkeepUpdate frequency

TZ iBoat ships an update every 8 days, Aisea every 5 weeks. The most recent releases landed on November 4, 2026 and November 2, 2026 respectively.

Scorecard5 real differences · 6 level
TZ iBoat versus Aisea: the parameters behind the verdict, then further details
ParameterTZ iBoatAisea
PriceFreeFree
Rating4.6 (886 ratings) — better—
Positive reviews79.4% of reviews — better14.3% of reviews
Number of ratings886 — better—
Update frequencyEvery 8 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#97 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.2 — better15.6
Further details — not scored
Size428 MB86 MB
Age rating4+4+
DeveloperNobeltec, Inc.Aidea Inc.

Customer experience

TZ iBoat

All ratings885 ratings
Positive91.5%
Neutral3.2%
Negative5.3%
Written reviews394 reviews
Positive79.4%
Neutral7.4%
Negative13.2%

Aisea

Written reviews7 reviews
Positive14.3%
Neutral28.6%
Negative57.1%

Bugs and requests

TZ iBoat

Reported bugs

3 issues
  • GPS position not updating reliably while moving
  • Radar overlay not functioning properly
  • Compatibility issues with older devices or iOS versions

Requested features

5 requests
  • Automatic routing and trip planning
  • Improved satellite imagery and overlays
  • Better integration with other marine electronics
  • More customization options for data displays
  • Ability to mirror camera feeds as a rear-view

Aisea

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

TZ iBoat

Subscriptions8
  • Essential Subscription$2.991 Month
  • Premium Subscription$9.991 Month
  • Great Lakes7 Days trial$19.991 Year
Show 5 more
  • Canada West7 Days trial$19.991 Year
  • USA7 Days trial$19.991 Year
  • Bahamas7 Days trial$30.991 Year
  • Central America & Caribbean7 Days trial$30.991 Year
  • Elite Subscription$39.991 Month
One-time2
  • AIS module$8.99
  • Radar module$49.99
None

Aisea

No in-app purchases

Questions

Is TZ iBoat free?
TZ iBoat is free to download, with in-app purchases available.
Is Aisea free?
Aisea is free to download, with no in-app purchases.
Do TZ iBoat or Aisea have ads?
Neither TZ iBoat nor Aisea shows ads.
Which is updated more often, TZ iBoat or Aisea?
TZ iBoat ships an update every 8 days, and Aisea every 5 weeks. Most recently, TZ iBoat was updated on November 4, 2026 and Aisea on November 2, 2026.

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