EN states they have 60+ plans to choose from, so my understanding is that they basically operate off of template plans already written and then the athlete chooses which plan they feel will be best for them.
TriDot uses big data analytics and predictive and prescriptive analytics to leverage 15+ years of data acquisition to create training specific for each individual. Each training phase considers over 11,000 calculations to ensure each athlete's potential is realized while maintaining proper recovery. Once the plan is created, thousands of data points within each training file are analyzed to continually ensure maximum results and recovery. TriDot improves every day through the utilization of artificial intelligence and analysis of over 1 million training files per year. TriDot utilizes technology very similar to those that we use on a daily basis in 21st century life. Despite complex things like algorithms, AI, and big data, it is actually very simple for athletes to use. There is also a full time support staff available in addition to the coaches. Disclaimer- I am a member of that support staff
Each year we evaluate the effectiveness of training wit TriDot vs other means. In 2017 we followed 512 athletes racing 12 US Ironman races and established their fitness level and race ability in the preseason months and then followed actual race results. The athletes training with TriDot improved their race potential by an average of 61 minutes more than those that did not train with TriDot and trained an average of 30% fewer hours. The DNF rate was also 2.5x lower. More on that is available at
https://tridot.com/...ason_project_results TriDot offers a free test drive and subscription options starting at $9.99/ mo