Modern evo is free, but it forces constant updates and telemetry. Dialux 3.14 is completely offline. Once installed from a CD or ISO file, it never phones home. For military, high-security, or remote off-grid projects, this is invaluable.
If you are sticking with 4.14, you are safe for strict calculation math. However, note that is the current standard. Dialux 3.14
have superseded it, DIALux 3.14 remains recognized for these core capabilities: Core Features Illuminance Simulation Modern evo is free, but it forces constant