Most running apps hand you a generic plan and a black box. Cursa builds your training around the actual race you want to run, and shows you why every workout exists — when it changes a session, you see what moved and the reasoning, and you can disagree. It imports your full history from Apple Health, so years of runs come with you instead of being left behind. On-device Apple Intelligence does the coaching; your training data never goes to a public model. Free to start, iPhone+ Apple Watch only.