Comparison

Sea/net vs Nau

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

Head to head
About

Sea/net

Track global vessel movements with a comprehensive and user-friendly system. This tool integrates satellite and land-based AIS data with a vast vessel database for real-time insights.

Highlights
  • Global ship tracking
  • AIS data integration
  • Vessel database
  • Customizable fleets
  • Historical voyage data
  • Filtering by vessel type
Features
Read full description

Sea/net is the leading online ship tracking system, integrated with the world’s most authoritative vessel database. Comprehensive, trustworthy and easy to use, Sea/net blends satellite and land-based AIS data with the unique vessel characteristics database. It is the only tool you need to track global vessel movements. Sea/net tracks: * 1.2 billion GT * 1.8 billion Dwt * 20,000 companies * 5,000 ports and zones Key features include: * Filtering by vessel type * Multiple customised and dynamic fleets based on users’ own criteria * Vessels can be saved into “My Fleets” for easy future access * Historical port callings and vessel voyages over a 12 months period Sea/net is available on desktop, iPad and iPhone. "Continued use of GPS running in the background can dramatically decrease battery life."

About

Nau

Features
Read full description

Real-time Vessel Tracking and Monitoring  Track the position, speed, and heading of each vessel in real-time on a map  Receive real-time updates on vessel status, including alerts for deviations from planned routes or anomalies in vessel behavior  Detailed Consumption Monitoring Monitor fuel consumption, power consumption, and speed for each vessel in real-time Analyze consumption trends and identify areas for improvement Receive alerts for excessive fuel consumption or deviations from expected consumption patterns  Comprehensive Analytics Dashboard Access a centralized dashboard with key fleet performance metrics, including fuel efficiency, emissions, and voyage optimization Benchmark fleet performance against industry standards and identify areas for improvement  Waste Management Data Insights Track waste generation and disposal patterns for each vessel Identify vessels with high waste generation rates and implement targeted waste reduction strategies Receive alerts for abnormal waste generation patterns or non-compliant waste disposal practices  Port and Agent Details Maintain a comprehensive database of port and agent information, including contact details, service offerings, and port regulations Access real-time port information, such as weather conditions, berth availability, and cargo handling capacity  Receive alerts for port closures, delays, or disruptions  Consumption Details and Vessel Management Charts  Access detailed consumption data for each vessel, including fuel, power, speed, and other relevant metrics  Visualize consumption trends and vessel performance using interactive charts and graphs  Gain insights into vessel efficiency and identify areas for optimization  Emission Efficiency Monitoring Track carbon dioxide (CO2), nitrogen oxide (NOx), and sulfur oxide (SOx) emissions for each vessel  Calculate and monitor Energy Efficiency Operational Indicator (EEOI) scores  Receive alerts for non-compliance with emissions regulations or deviations from emission reduction targets  Filter Options for Reports and Alerts Filter reports and alerts based on various criteria, such as ports, countries, underperforming vessels, arrival dates, report types, vessel alerts, and critical ports Tailor reporting and notifications to specific areas of interest and prioritize critical information  Notification Dashboard Receive real-time notifications for important fleet events, including vessel arrivals, port delays, consumption anomalies, and emission alerts  Consolidate all notifications into a centralized dashboard for easy access and management  Customize notification settings to receive alerts based on specific criteria and preferences  CII Ratings Monitoring Track and monitor Carbon Intensity Indicator (CII) ratings for each vessel Identify vessels with low CII ratings and implement strategies to improve energy efficiency  Receive alerts for vessels with CII ratings that fall below regulatory requirements  Consumption and Voyage Speed Notifications Receive real-time alerts for deviations from expected fuel consumption or voyage speed Identify potential issues early on and take corrective actions to optimize vessel performance  Monitor the impact of weather conditions, route changes, and operational adjustments on fuel consumption and voyage speed Direct Mailing Feature Send emails directly to ship staff from the fleet management app Select specific ships and recipients for targeted communication  Expedite communication with ship personnel and address operational issues promptly

Screenshots

Sea/net4 screens
Nau4 screens

Verdict

The call

The clearest difference is update cadence: Sea/net at every 5 weeks against Nau's every 3 months. Nau's advantage is iOS requirement (13.0 vs 17.6). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sea/net ships an update every 5 weeks, Nau every 3 months. The most recent releases landed on September 23, 2026 and September 8, 2026 respectively.

Scorecard2 real differences · 6 level
Sea/net versus Nau: the parameters behind the verdict, then further details
ParameterSea/netNau
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size35 MB14 MB
Age rating4+4+
DeveloperMaritech Services LimitedORION CREDENCE SOLUTIONS PRIVATE LIMITED

In-app purchases

None

Sea/net

No in-app purchases

None

Nau

No in-app purchases

Questions

Is Sea/net free?
Sea/net is free to download, with no in-app purchases.
Is Nau free?
Nau is free to download, with no in-app purchases.
Do Sea/net or Nau have ads?
Neither Sea/net nor Nau shows ads.
Which is updated more often, Sea/net or Nau?
Sea/net ships an update every 5 weeks, and Nau every 3 months. Most recently, Sea/net was updated on September 23, 2026 and Nau on September 8, 2026.

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