Sea/net vs Nau
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Global ship tracking
- AIS data integration
- Vessel database
- Customizable fleets
- Historical voyage data
- Filtering by vessel type
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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."
Nau
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | Sea/net | Nau |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 5 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Maritech Services Limited | ORION CREDENCE SOLUTIONS PRIVATE LIMITED |
In-app purchases
Sea/net
No in-app purchases
Nau
No in-app purchases









