Boating app for fuel consumption

The NaviFlow app is free and available for both iOS and Android. Even in the basic version, it allows you to use the NaviFlow system in a simple and immediate way to monitor your boat’s fuel consumption, with an intuitive interface and an easy setup suitable even for users with no technical background.
For users who want more complete control while underway, it is possible to activate a subscription that unlocks additional features designed to make fuel monitoring even more accurate and trip management even more practical. With the subscription, you can view live liters per nautical mile, save more than 10 trips, use the navigation screen in landscape mode, and pause an active trip whenever needed.
The subscription costs €39.99 for 6 months or €14.99 for 1 month. This allows each user to choose the option that best suits their boating habits and the amount of data they want to access and store over time.
No more rough calculations, often wrong and inaccurate, no more notes on scraps of paper and random formulas used the wrong way. With the NaviFlow system and app, you simply enter the correct data, with no difficulty and no need for a degree in computer science, to get the real-time fuel consumption of a single-engine or twin-engine boat, diesel or petrol. With just a few taps, you remove range anxiety and get a precise estimate of fuel consumption and therefore navigation costs.
The NaviFlow app was created to turn complex technical data into simple information that is easy to read and useful in real life. The goal is to give every boat owner an immediate tool to control engine fuel consumption, improve boat efficiency, and make better decisions during every trip at sea.
What is needed to install the system?
You simply need to power the NaviFlow control unit with a 12 V or 24 V power source, connect the flow meter to the fuel hose, and download the NaviFlow app. The system has been designed to be simple and quick to set up, without invasive dashboard installations or complex wiring.
The tutorial summarizes and explains the installation in a few simple steps at the following link. In just a few minutes, you can understand how the system works and see how the app communicates with the control unit to display real-time navigation and fuel data.
A stable Bluetooth connection
The connection is ensured by Bluetooth Low Energy, different from classic Bluetooth, also known as BLE. It is still a wireless technology, but it guarantees lower energy consumption and lower cost, which is essential for anyone boating without always having a charging point available. The safety of keeping fuel consumption under control goes hand in hand with the reliability of a stable connection, without losing data transfer quality.
The advantages of Bluetooth Low Energy are clear: low power requirements to activate and remain active, reduced energy consumption, and compatibility with most devices such as smartphones, tablets, and PCs. The NaviFlow app uses version 4.1, adopted also in applications such as home automation and ideal for boating environments where reliability, simplicity, and communication continuity are essential.
This means the system remains efficient even during long trips at sea, allowing the smartphone to receive data continuously without significantly affecting battery life.
Ease of use and real-time fuel consumption
The app is intuitive and avoids the usual pairing process: device pairing is not required because the connection takes place through the app and not through the operating system. Everything happens automatically and in real time. NaviFlow performs a direct calculation based on the actual fuel flow measured by the flow meter, and the data are transmitted to the smartphone using the BLE protocol. This provides constant, direct control.
The setup is very simple. Once the app is launched, the initial screen shows the available control units. In just a moment you can connect, rename the control unit using the boat name, and enter the password, which corresponds to the last four digits of the serial number shown on the control unit and on the box.
Once the initial setup is complete, the user can immediately access the essential data for navigation. The reading is clear, immediate, and suitable even for those who are not familiar with advanced technical tools. Everything is designed to provide the information that really matters, right when it is needed.
With NaviFlow, fuel consumption is not estimated approximately, but calculated according to the real fuel flow through the system. This makes the data much more reliable and allows you to evaluate the real effect of speed, trim, and engine setup on final consumption.
Fuel history and data memory
Fuel history, including fuel used and remaining tank level, is saved in memory. This means that even if the control unit is turned off, the next time it starts the app will show the previous values without having to enter everything again.
These data remain stored until they are reset by the user, which can also be done just once a year. This feature is particularly useful for anyone who wants to maintain a reliable long-term fuel history and compare one season with another.
Having persistent data memory means you can rely on a tool that is truly useful not only in the short term, but also over months and seasons. It is not only about seeing current consumption, but also about reconstructing the overall use of the boat and analyzing fuel cost trends over time.
Trip saving and route history
One very useful feature offered by the NaviFlow app is trip history. With one click, you can view all saved trips, which can also be easily consulted on Google Maps. In a moment, you get all the relevant information: navigation duration with departure and arrival points, miles covered, and fuel cost for the trip.
Configuration is simple: just enter the fuel price and the tank volume in liters. These are easy values to set, yet extremely useful for obtaining a clear and immediate reading of the real cost of each trip at sea.
The interface has been designed with a friendly layout and high usability so that all information is easy to read and understand. The result is a clean, organized, and practical screen where the main data are always under control.
With the free version of the app, you can save up to 10 trips. For users who go boating frequently or want to maintain a broader history, the subscription allows you to go beyond this limit and store a larger number of routes, giving you a more complete overview of the boating season.
If the boat has twin engines, separate icons appear for the two engines with the real-time fuel consumption parameters in liters per hour according to speed expressed in knots. The display can also be used in landscape mode: you can rotate the smartphone screen for optimal viewing, which is especially useful while navigating.
Price and subscription
The NaviFlow app is free and already in its basic version offers useful tools to control fuel consumption and consult the main navigation data. For users who want to take full advantage of the system, a subscription with advanced features is available.
- Live liters per nautical mile
- Ability to save more than 10 trips
- Navigation screen available in landscape mode
- Ability to pause a trip
The subscription costs €39.99 for 6 months or €14.99 for 1 month. It is a modest cost that can easily be offset by the fuel savings achieved through better consumption optimization. On top of that, it gives peace of mind by keeping autonomy, costs, and unexpected anomalies under control, helping you avoid unpleasant situations while boating.