Some older versions of DK Technical Mate offered a 7-day or 30-day trial. These trials typically limited you to 50–100 questions or locked advanced modules like "Engineering Drawing" or "Rules of the Road." If you find a download labeled "DK Technical Mate free" from the official website, it is almost certainly a time-limited demo.
Some forums discuss a "USB portable" version that does not require installation. If you find a portable version on a reputable maritime forum (e.g., DieselDuck or MarineEngineersForum), scan it with Windows Defender and Malwarebytes before execution. Even then, use it on an air-gapped machine (no internet). dk technical mate free
: Free, unverified M3U links can sometimes be used to deliver malware or track user data. It is widely recommended to use a VPN when accessing third-party IPTV streams to maintain privacy. Some older versions of DK Technical Mate offered