Coaching shouldn't be a bottleneck

Without Rex

✕ Drowning in WhatsApp messages
✕ Copy-pasting schedule adjustments
✕ Missing early warning signs
✕ Maxed out at 15-20 athletes
✕ Same questions, over and over

With Rex

✓ Rex handles routine check-ins in your voice
✓ AI suggests adjustments, you approve with one click
✓ Automatic alerts: "HRV dropped 15% over 2 weeks"
✓ Scale to more athletes without burning out
✓ Rex answers common questions 24/7

80%

of routine coaching communication can be handled by Rex

Three steps to scale

01

Connect Your Athletes

Invite athletes via deep link. They download the app, connect instantly. No spreadsheets, no manual onboarding.

02

Train Rex Your Way

Rex learns your coaching philosophy, your communication style, your methodology. It becomes your voice, your assistant.

03

Coach at Scale

Rex handles daily check-ins, post-workout summaries, and weekly recaps. You focus on the athletes who need you most.

Built for coaches who demand more

01

AI Training Calendar

Use AI Assistant to prepare the training plan for next week. Rex understands your coaching philosophy and builds periodized plans that match each athlete's goals and fitness level.

02

Workout Library & Editor

With an easy-to-use drag and drop editor, quickly design professional workouts with multi-page multimedia descriptions. Build once, reuse across athletes.

03

AI Auto-Generate Workouts

Based on your training principles and desired plan structure, AI auto-generates workouts for any training plan duration. Review, tweak, and publish in minutes.

01

Club Inbox

Get an overview of recent club activity and see who needs special attention — no training plan assigned, risk of injury, and more. Quickly leave comments, add engagement emojis, or jump to activity details.

02

Athlete Overview

See each athlete's recent training trends including distance and training load, their next race with countdown, and immediately assign a training plan.

03

Activity Feed

For any athlete or group, quickly review all recent activities in one place. Spot patterns, track consistency, and stay on top of your team.

04

Activity Details

Dive into each activity to review exercise metrics in detail — pace, heart rate, splits, and more. Leave a comment to keep your athletes engaged.

01

In-App Messaging

Communicate with athletes directly on the platform without switching to other messaging tools. This gives the AI agent richer context about each athlete, enabling more personalized coaching suggestions.

02

Smart Broadcast

Target athletes by labels or RFM/NAPL segments and send broadcasts via Push Notification, Line, or Email — either immediately or scheduled for the perfect time.

01

Athlete Performance

Full performance overview per athlete — training distance, loading trends, recovery status, and key metrics like CTL, ATL, and TSB. Coaches can also adjust training zones directly.

02

Group Analytics

View training distance, duration, and loading across your entire roster. Get an AI-powered insight summary highlighting which athletes need more attention.

Simple pricing. Powerful coaching.

Start free. Scale when you're ready.

Monthly

YearlySave 20%

Starter

For individual runners

$0/month

Up to 5 athletes
Workout Library
Training Plan Builder
1:1 Messaging
Basic Performance Dashboard

Get Started Free

Coach

Up to 100 athletes

$99/month

Everything in Starter, plus:
Full Rex AI Agent
AI Post-Workout Summaries
AI Weekly Recaps
Coach Dashboard & Attention Queue
Group Training Plans
Smart Communication Drafts
Priority Email Support

Start Free Trial

14-day free trial · No credit card

Club

Up to 300 athletes

$399/month

Everything in Coach, plus:
Multi-Coach Support (3 seats)
Brand Kit & Customization
Broadcast Messaging
Advanced Analytics
Member Management
Audit Logs
Priority Support

Start Free Trial

14-day free trial · No credit card

Enterprise

500+ athletes

Custom

Everything in Club, plus:
Unlimited Coach Seats
White-Label Option
API & Webhooks
Custom Integrations
Dedicated Success Manager
Enterprise SLA

Contact Sales

Founder Coach Program

We're looking for coaches who want to shape the future of AI coaching. Build NexRex with us and lock in a permanent lifetime discount.

First 3 Coaches

1 year free

Then 50% off forever — Coach tier at $49.50/mo instead of $99/mo

Apply Now

First 10 Coaches

6 months free

Then 50% off forever — early access to every feature, direct line to founding team

Apply Now

Not a discount play — we want coaches who care about training science and want to shape the product. Limited spots.

Frequently asked questions

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.

Scale Your Coaching with AI