Intervals.icu gives you some of the deepest training analytics available, and most of it for free. But charts don't tell you what to do next. athletedata.health takes similar data and puts a coach behind it.
Intervals.icu shows you a fitness/fatigue chart and a power curve. You need to know what those mean and what to do about them. athletedata.health analyzes the same underlying data and tells you in plain language: train hard today, go easy, take a rest day, or adjust your plan.
Intervals.icu imports data from WHOOP and Oura but just displays it alongside your workout data. It doesn't draw conclusions or make recommendations. athletedata.health cross-references your recovery metrics with your training load and tells you what to change.
With Intervals.icu, you log in, navigate to the right chart, and interpret the data yourself. With athletedata.health, your coach messages you on Telegram after a workout with analysis, or reaches out when your HRV has been trending down. The insight comes to you.
Intervals.icu has no strength training support. Users have been requesting it in their forum for years. athletedata.health connects to Hevy and factors your gym work into every recommendation alongside your endurance data.
They work well together. Intervals.icu is great for deep-dive chart analysis if you enjoy looking at power curves and PMC data. athletedata.health handles the day-to-day coaching and turns your data into action. Many data-oriented athletes use both.
Intervals.icu gives you charts. You still need to interpret them and decide what to do. athletedata.health gives you a coach that does the interpretation, answers your questions, builds plans, and reaches out proactively. If you already know how to read a PMC chart and program your own training, Intervals.icu might be enough. If you want someone (or something) to do that for you, that's what athletedata.health is.
athletedata.health focuses on conversational coaching via Telegram rather than visual dashboards. It accesses and analyzes the same types of data but delivers insights through conversation. For detailed chart analysis, Intervals.icu or TrainingPeaks are better suited.
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