Exercise, backed by research
Achilles asks where you're starting from and what you want, then builds your plan from a library of sports-science and physiotherapy research. Every exercise comes with its dose and the studies behind it.
The name comes from the Greek Ἀχιλλεύς, often traced to achos (grief, pain) and laos (people). We want to help people out of pain and into training they can keep up.
How it will work
A short set of questions about your goal, how you move today, any pain, the equipment you have and the time you can give. The questions adapt to your answers.
An AI planner reads from a growing library of studies and trusted sources, then picks your exercises with sets, reps, rest and how to progress. It cites what it used.
Each exercise has step-by-step guidance, cues and where you should feel it. Log your sessions and the plan moves forward with you.
Goals
One exercise library serves all of these. These are some of the goals the intake is being built around.
Safety first
Before anything is planned, Achilles asks a fixed set of safety screening questions. If an answer points to something that needs a medical opinion, the app stops and tells you to get one.
That check is a fixed rule written in advance. The AI planner never decides it. Achilles is not a medical service and does not diagnose.
Progress · October 2026
Intake questions. The adaptive question bank and the safety screening.
Science library. Finding, reading and indexing research papers, with the evidence pulled out of each.
Exercise library. Exercises with guidance, cues, equipment and video.
The planner. Turning your answers and the evidence into your plan.
Sessions and progress. Logging workouts, progression and reminders.
If you'd like to hear when Achilles opens, or you work in sports science and want to talk about the research behind it, write to us.