Quota (Dualog) vs EngineerTact

The Dualog Quota app helps crew manage their internet access onboard in a secure, fair, and user-friendly way. Quota replaces Dualog’s Crew Connection app, which was previously used to manage internet quotas onboard. With a modern, mobile-friendly design, Quota makes it easier than ever for the crew to stay in control. What you can do with the Quota app: - Track your usage in real time See how much data or time you’ve used, how much is left, and get daily breakdowns by carrier like Starlink, VSAT, or 4G. - Use the internet across all your devices Manage access on multiple devices under the same account. Works smoothly on mobile and tablet via the app, or on desktop through the web interface. - Top up when you need to Run out of your free allowance? Buy more data directly in the app, no need to ask IT or the captain. - Stay in control with data-saving features Get alerts when usage is high and tips for reducing consumption, so you don’t run out unexpectedly. - Enjoy hassle-free logins The app detects the ship’s Wi-Fi automatically, making logins faster and more reliable. Built for the realities of ship life The service works with any internet provider or carrier, requires no local admin for everyday use, and integrates with Dualog’s proven internet control and security tools. Reliable and fair internet access is now an essential part of crew welfare. With Quota, you gain more transparency, more control, and the freedom to stay connected with family and friends, while helping ship operators keep networks secure and costs under control.

EngineerTact is an offline field toolkit for engineers, land surveyors, RF technicians, and field operators across all domains — land, sea, and air. KEY FEATURES: • WGS84 Geodetic Coordinate Conversion — Convert between Geodetic (Lat/Lon/Alt) and ECEF (X/Y/Z) using the Bowring iterative algorithm. Real-time ENU Local Tangent Plane target tracking with bearing and range. • RF & Radar Calculator — Compute Free Space Path Loss (FSPL), Radar Line of Sight (4/3-Earth model), first Fresnel Zone radius, and signal wavelength. All calculations run on-device. • Mission Brief Planner — Build complete field mission briefs with route distance (Haversine), bearing in degrees and NATO mils, estimated time of arrival, and RF link margin. Save and reload briefs on-device. • Aerospace & Maritime Converter — Convert speed (knots, km/h, m/s, Mach), altitude (ft, m, FL), pressure (hPa, inHg, psi), and ISA atmospheric parameters with full unit coverage. • Number Base & Data Converter — Convert between decimal, hexadecimal, binary, and octal. IEEE 754 float analysis. Bit-width calculator. • Formulas & Reference — Full mathematical reference for FSPL, WGS84 geodesy, Haversine, radar horizon, Fresnel zone, and NATO unit standards. All calculations are performed entirely on-device. No network connection, no account, no tracking, no ads. Designed and engineered by Fırat Bozkaya.