A tool designed by coaches, for coaches — indispensable on a daily basis. I use Nolio daily to manage the training of my athletes in triathlon, trail, and swimrun, and it has become the backbone of my coaching activity. Interface / User Experience. The drag-and-drop planning and session duplication from my library save me several hours each week. I build my 4-week blocks in a few minutes, and the athlete-side calendar view is clear enough that even the least tech-savvy can navigate it without training. Integrations. The automatic synchronization with Garmin, Strava, and other ecosystems is reliable: sessions upload automatically, with power, heart rate, and pace data. No more manual exports — I spend my time analyzing, not collecting. Performance. The application is fast and stable, even with a full roster of athletes. The load tracking (planned/actual comparison, monotony, strain) allows me to detect deviations early and adjust before fatigue sets in. Pricing / ROI. The value for money is excellent compared to equivalent Anglo-Saxon platforms. The time saved on administration and the quality of monitoring more than justify the subscription — it's an investment recouped from the first athletes. Support / Onboarding. The team is responsive, French-speaking, and above all, attentive: user feedback truly translates into product developments, which is rare. AI / Intelligence. The automatic analysis indicators enrich my data interpretation without ever replacing the coach's judgment — exactly the right balance. With the API: I can use an AI, of my choice, to assist me. I recommend without reservation.