FitBudd

Client

FitBudd

Location

Gurugram, India

Engagement

Frontend Engineering and Fitness & Wellness

Technologies & Tools Used

Next.js
Next.js
JavaScript
JavaScript
Firebase
Firebase
Redux
Redux
React JS
React JS
Node JS
Node JS
ExpressJS
ExpressJS
AWS
AWS

From slow load times to smooth performance at scale.

FitBudd is a global fitness technology platform that enables personal trainers, gyms, and coaches to run their entire business through a single branded mobile app and web dashboard.

The platform includes workout programming, nutrition planning, class scheduling, payments, progress tracking, and real-time communication.

By bringing these operations into one ecosystem, FitBudd helps fitness professionals scale while giving clients a seamless experience worldwide.

Modernizing a frontend-heavy fitness platform for global growth.

As FitBudd scaled across trainers and clients worldwide, the frontend began showing its limitations.

Most application logic lived on the client side, causing load times and responsiveness to decline as platform usage increased.

Firestore synchronization required careful tuning, heavy API dependency increased latency, and the codebase needed restructuring to support long-term scalability.

Spark Eighteen helped FitBudd modernize its frontend-heavy platform with faster loads, fewer API calls, a fully custom real-time chat, and instant app theming for trainers.

The Challenge

FitBudd needed to improve frontend performance, optimize real-time data synchronization, and build a fully owned trainer-client chat system without relying on third-party services.

Frontend-Heavy

Client-side logic pushed load times up as usage grew worldwide.

Real-Time Complexity

Firestore sync demanded careful performance and state tuning.

Custom Chat Mandate

Trainer-client chat had to be built from scratch, no third parties.

The Solution

Spark Eighteen revamped and optimized the frontend codebase for faster page loads, fewer API calls, and more efficient data handling.

We built a fully custom real-time chat system deeply integrated with the platform.

The team tuned Firestore-based real-time data flows and delivered dynamic application theming with live preview, allowing trainers to customize their branded apps instantly.

The Results

The platform now loads faster, makes fewer API calls, and handles live updates smoothly as trainer and client numbers grow worldwide.

Trainers can preview and rebrand their applications in real time, while the chat system runs on infrastructure fully owned by FitBudd.

5 upgrades

Shipped across the frontend core: loads, API calls, data handling, chat, theming

4.6/5

Capterra rating held while the platform scaled worldwide (client-published)

Business Outcomes

Faster Performance - Page loads and navigation improved significantly.

Reliable Chat - Custom-built system for seamless trainer-client communication.

Efficient Real-Time Data - Live updates render smoothly across the platform.

Reduced API Usage - A more stable, responsive, reliable application.

Instant Branding - Trainers preview and customize their apps in real time.

Scale-Ready Foundation - A stable frontend that grows with the platform.

Working with Spark Eighteen helped us significantly strengthen the performance and reliability of the FitBudd platform. Their frontend expertise, clear communication, and deep understanding of real-time systems allowed us to deliver faster load times and smoother user journeys. The collaboration was structured, efficient, and aligned perfectly with our long-term product goals.

—Team FitBudd

View Related Projects
Knack

Knack

System Two Security - SP18 Client

System Two Security

© 2026 All rights reserved •

Spark Eighteen Lifestyle Pvt. Ltd.