case study -- Gaming and sports
Fantasy Sports Mobile App
A fantasy sports platform built to hold up under live match traffic, cash payouts, and a global player base.
- industry
- Gaming and sports
- region
- Worldwide
- timeline
- March 2022 - ongoing
project snapshot
Syndell built a fantasy sports mobile platform for a worldwide gaming client on React JS and Supabase, covering league creation, ball-by-ball live scoring, and secure cash-prize withdrawals. Live and adding features since March 2022, with two-factor authentication protecting every real-money transaction.
overview
A worldwide fantasy sports platform
Fantasy sports lives or dies on the moments that matter most: the last over of a match, the final drive of a game, the seconds where a leaderboard flips. A worldwide fantasy sports client came to Syndell needing a platform that could carry real money, real-time scoring, and real players through exactly those moments without buckling. The brief covered the full stack of what a fantasy platform needs to earn trust on day one, not grow into it over time.
the challenge
What A worldwide fantasy sports platform needed to solve
Fantasy sports apps compete on two things at once: how fast the experience feels during a live match, and how safe it feels the moment money is involved. Both had to work from launch, across a worldwide player base with no single time zone to plan around.
- 01
Deliver ball-by-ball live scoring and leaderboard updates fast enough to hold player attention during a match
- 02
Support flexible league creation and team-building with budget-based player selection
- 03
Process real-money entries and cash-prize withdrawals through payment rails players could trust
- 04
Protect accounts handling real money with authentication strong enough for a gaming-plus-payments product
- 05
Keep customer support available across time zones for a worldwide user base
the solution
What did Syndell build for A worldwide fantasy sports platform?
Syndell built the platform on React JS for a fast, responsive front end and Supabase for the backend, wiring the two together with a FortNite-style API integration for live match data. Every feature was scoped around the two things fantasy players judge instantly: does it feel fast, and does it feel safe.
User registration and profile management built for a fast, low-friction signup flow
Fantasy leagues with flexible creation and joining options, plus budget-based team building
Live score updates with ball-by-ball commentary feeding dynamic leaderboards and rankings
Fair-play and responsible-gaming controls built into the core product, not bolted on after
Secure payment gateways for cash-prize withdrawals, backed by two-factor authentication
24/7 customer support coverage to match a worldwide, always-on player base
technology stack
- React JS
- Supabase
- FortNite API integration
the outcome
What did this project achieve?
The platform has been live and iterating since March 2022, with Syndell continuing as the engineering partner behind ongoing feature work rather than handing off after launch.
results below are self-reported by the client, as published in the original case study on syndelltech.com
A live, ongoing fantasy sports platform running on React JS and Supabase since March 2022
Ball-by-ball live scoring and dynamic leaderboards built for match-day traffic
Cash-prize withdrawal flow secured with two-factor authentication
Continuous engineering partnership, not a one-time build and walk-away
what this means for you
If you're weighing a fantasy sports or real-money gaming build, the lesson here is to get speed and payment security right before chasing extra features. Your players will judge the app in the first live match; if scoring lags or a withdrawal feels unsafe, no amount of polish elsewhere will save it.
why it worked
What makes this build worth studying is the restraint: a fantasy sports app has a hundred features it could chase, but the ones that earn player trust are speed during live play and safety around money. Syndell kept the engineering focus there first, then layered in the rest of the experience around that foundation. The result is a platform still shipping updates years after its first release, with the same team that built it still behind the wheel.
This project drew on Syndell's mobile app development practice. Source case study reviewed on the live Syndell site at syndelltech.com.
more work
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frequently asked
Questions about this project
01How long does it take to build a fantasy sports app like this?
This platform has been live and adding features since March 2022, built on React JS and Supabase. Timelines vary by scope, but a live-scoring, real-money fantasy app typically needs several months for the core build before the first real-money season.
02How is cash-prize security handled in a fantasy sports app?
Syndell secured cash-prize withdrawals with two-factor authentication and built fair-play and responsible-gaming controls directly into the core product rather than adding them after launch.
03What technology works best for real-time fantasy sports scoring?
This build pairs React JS on the front end with Supabase on the backend, plus a live match-data API integration, to deliver ball-by-ball commentary and leaderboard updates fast enough to hold player attention during a match.
04Does Syndell support a fantasy sports app after launch?
Yes. Syndell has stayed on as the engineering partner since the March 2022 launch, with 24/7 customer support built into the product and continuous feature work rather than a one-time handoff.
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proof -- A live, ongoing fantasy sports platform running on React JS and Supabase since March 2022
