Apps similar to T2DECODE include Cisco Packet Tracer, which is free. Other options are TryHackMe and Hack The Box. In total there are three Online Education Services like T2DECODE for the web, Android, iPhone, iPad and Mac.
Packet Tracer is an essential learning tool used in these Cisco Networking Academy courses: IT Essentials, CCNA Routing and Switching, CCNA Security, Intro to Internet of Things (IoT), and Mobility Fundamentals.
United States
TryHackMe is an online platform for learning and teaching cyber security, all through your browser.
Hack The Box is an online platform allowing you to test your penetration testing skills and exchange ideas and methodologies with other members of similar interests. It contains several challenges that are constantly updated.
United Kingdom
