Scale Your Coaching with AI

During onboarding, Rex asks about your methodology, communication preferences, and coaching principles. As you review and adjust Rex's drafts over time, it continuously refines its understanding. Within 2-3 weeks, Rex generates messages that sound authentically like you.

Yes — Rex always identifies itself as an AI training companion. It never pretends to be human. However, Rex communicates in your coaching voice and defers to you on complex decisions, so athletes experience it as an extension of your coaching.

All data is encrypted end-to-end at rest and in transit. Athletes control what information is shared with coaches. You can view training data and plan compliance; private conversations between athletes and Rex are not visible to coaches by default.

Yes. The Starter plan is free forever for up to 5 athletes — no credit card, no time limit. When you're ready for Rex AI and advanced features, the Coach plan includes a 14-day free trial.

TrainingPeaks and Everfit are excellent planning tools. NexRex goes further with Rex — a persistent AI agent that actively communicates with your athletes, learns your methodology, and handles the 80% of coaching communication that's routine. It's not just a platform; it's like hiring an AI assistant coach.

NexRex works on iOS (Android coming soon) and integrates with Apple Watch, Garmin, Fitbit, and other popular wearables via Apple Health and direct API connections.

Rex never sends messages to athletes without your approval settings. You control the level of autonomy — from "draft everything for my review" to "handle routine check-ins automatically." For anything involving injury risk, training load changes, or medical concerns, Rex always escalates to you. You're the coach; Rex is the assistant.

Yes. Every message Rex sends is logged and visible in your Coach Dashboard. You can review conversation history per athlete anytime. If you prefer hands-on control, set Rex to draft-only mode — it writes the messages, you approve before they're sent.

Your athletes keep their accounts and all their personal data — training history, race records, and conversations. They can continue using the free tier of the app. You can export your coaching data at any time. No lock-in, no hostage-taking.

Only athletes who have been active in the last 90 days count toward your plan limit. If someone stops training for a season, they don't consume a slot. You can also archive athletes manually.

You send a deep link — that's it. Athletes tap the link, download the app, and they're connected to you instantly. No codes, no manual setup, no spreadsheets. Most athletes are fully onboarded in under 2 minutes.