{ case study }
AI-Powered Tennis Training Revolution
Introduction
Waltair Robotics built Wolley, an AI-powered tennis ball machine that blends hardware innovation with a seamless mobile experience. The mobile app, developed in React Native, allows users to create accounts, add players, and manage play sessions—whether training individually or coaching student athletes. This dual approach ensures a connected ecosystem where performance, analytics, and personalization come together.

{ the challenge }
The Challenge
Traditional ball machines don't provide data, customization, or flexibility. Players cannot easily manage training sessions or track progress over time. Coaches need tools to manage multiple athletes in one platform.
- Deliver an integrated solution where the machine + mobile app work hand-in-hand
- Allow users to create accounts, manage profiles, and track sessions seamlessly
- Enable coaches to add multiple student athletes, assign drills, and monitor their progress in real time
- Make Wolley not just a machine, but a digital coaching platform
{ the brief }
What we set out to solve
The problem
Traditional ball machines don't provide data, customization, or flexibility. Players cannot easily manage training sessions or track progress over time. Coaches need tools to manage multiple athletes in one platform.
Deliver an integrated solution that:
- Makes the machine + mobile app work hand-in-hand
- Allows users to create accounts, manage profiles, and track sessions seamlessly
- Enables coaches to add multiple student athletes and monitor progress
- Transforms Wolley into a digital coaching platform
Where it was breaking
No Centralized Player Management
Solved with multi-account features.
Hard to Track Long-term Progress
Added app-based session history and performance analytics.
Limited Support for Coaches
Introduced multi-player management for student athletes.
No Mobile-first Experience
Built an intuitive React Native app for iOS and Android.
Who it was built for
Individual Players
Create personal accounts, track their progress, and practice anytime.
Coaches & Trainers
Manage rosters of student athletes, schedule sessions, and review analytics.
Academies & Clubs
Offer members app-based access to sessions and performance insights.
Design Thinking Process

{ what we built }
Features & Highlights
User Accounts
Players & coaches create personal profiles

{ stack }
Technologies & Tools Used - Visual
Mobile App
- React Native
Web Dashboard
- React
Backend
- Node.js
AI & Computer Vision
- Machine Learning
Cloud
- AWS
{ outcome }
Conclusion
Digital Coaching Ecosystem
Delivered more than just a training machine—a complete coaching platform.
Smart Training Experience
Players can practice smarter with AI-powered adaptive drills.
Multi-Athlete Management
Coaches can manage multiple athletes with ease through intuitive tools.
Data-Driven Training
Clubs can offer data-driven training experiences that were once out of reach.
Seamless Integration
Hardware and software work together to create a connected training ecosystem.
{ the result }
Overview
Waltair Robotics set out to transform tennis training with Wolley, an AI-powered smart ball machine integrated with a mobile app. The goal was to combine hardware and software for personalized, data-driven coaching experiences. Key challenges included seamless machine-app integration, multi-player management, and real-time performance tracking.

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