Most athletes have a plan. Nobody's watching between sessions to say "today you're run down — dial it back." Arc is that coach. Always on, never asking you to check in first.
You enter your sport, your goal, your available time. Arc builds a periodized training plan — not a static spreadsheet, but a living document that adjusts every week based on how you're responding.
No generic templates. No "choose from 10 pre-made workouts." Your program is generated for your body, your schedule, your season.
Arc tracks your self-reported recovery, optional HRV data from your watch, and your training history. Every session gets a fatigue score. Every adjustment is justified.
When you're cooked, Arc tells you. When you're primed, Arc pushes you. This is what a real coach does — and most athletes don't have one.
Most apps show you charts. Arc shows you meaning — why your 5K time dropped, which training block caused your strength surge, and whether you're trending toward your race goal.
Works with just a daily check-in. Optional HRV, optional wearables — never mandatory.
Arc doesn't wait for you to ask. It pushes insights, flags patterns, adjusts programs — autonomously.
Running, cycling, triathlon, strength, CrossFit, team sports. The periodization engine handles it all.
Arc is your athletic performance agent — working in the background, building your program, watching your signals, and pushing you forward. Every single day.