Best iVSP alternatives: apps like iVSP

Propeller Calc

by Frode Rørvik

Free

This utility calculates propeller performance metrics like pitch, gear ratio, RPM, slip, and speed. Input any four values, and the app computes the fifth, helping users understand the relationship between propeller design and boat performance.

Flags! - Maritime signal flags

by Ziga Porenta

$0.99

This app provides a comprehensive reference for all International Maritime Signal Flags, including letters, numbers, and substitutes. It features interactive quizzes to test your knowledge and offers Morse code examples.

International Steam Tables

by Hans-Joachim Kretzschmar

$2.99

This application calculates thermodynamic properties of water and steam based on the IAPWS-IF97 formulation. It allows users to input various combinations of variables and automatically computes a wide range of properties, including transport properties and derivatives. Designed for students and engineers, it offers a comprehensive tool for thermodynamic calculations.

RocControl

by Rob Versluis

Free

Control your digital model railroad layouts remotely. Manage locomotives, switches, and signals, and set trains to run automatically. Connect to a Rocrail server to operate your entire layout from your mobile device.

Quota (Dualog)

Dualog® Connection Suite™

Free

This app allows ship crew to manage their onboard internet access. It provides real-time usage tracking, allows purchasing additional data, and offers data-saving features for a fair and user-friendly experience.