Empowering Software
At Castynet, we harness the power of digital innovation to create meaningful impact. Our team of experts designs solutions that enable businesses to grow, adapt, and lead in the digital era.
Web apps and websitesMobile appsSecurity auditsRescue and modernisation
Our last success story
WakowapiWeb application
Our work
Wakowapi
CategoryWeb application
Time taken3 months
Wakowapi lists what’s happening across Kenya, from DJ nights to hikes, runs, festivals, and art fairs.
View Wakowapi
Yebo Sports
CategoryWeb application
Time taken4 months
Kenya’s premier sports complex booking platform. Book world-class facilities from football pitches to basketball courts, all in one location in Ruaka. Trusted by 30+ schools with 500+ students trained.
View Yebo Sports
Kenyan TOP100
CategoryWeb application
Time taken2 months
Kenyan TOP100 celebrates the sounds of Kenya by tracking the most-streamed Kenyan artists on Spotify. Updated daily with real listener data, explore national rankings or dive into city-specific charts for Nairobi, Mombasa, Nakuru, and more.
View Kenyan TOP100
Technologies used
Next.js
React
TypeScript
Supabase
Spotify API
Framer Motion
Three.js
Team members
Developer portfolio
CategoryWebsite
Time taken2 weeks
A personal portfolio website showcasing professional experience, technical blog posts, and contact information. Built with a bold, minimalist design featuring striking red accents and elegant typography.
View Developer portfolio
What we build
Mobile apps
High-performance mobile apps for iOS and Android, built to engage users and scale with your business.
starts at KES 300,000
React NativeExpoTypeScriptJavaScript
Web apps and websites
Modern, responsive websites and web applications engineered for speed, reliability, and seamless user experience.
starts at KES 250,000
Next.jsReactTypeScriptJavaScript
Security audits
A fixed-scope review of your web app or API: authentication, access control, injection, data exposure, and infrastructure configuration, with a written report and a retest once fixes land.
starts at KES 150,000
OWASP ZAPBurp SuiteSemgrepNmap
Rescue and modernisation
We take over slow, broken, or abandoned apps, stabilise them, fix performance, and get them deployable again, without a rewrite from scratch.
starts at KES 180,000
Next.jsSentryPlaywrightCI/CD
Our experts
Max Riunge
Co-Founder & Lead Engineer
What to expect
Discovery and strategy
Every successful project begins with clarity. In this stage, we work closely with you to understand your vision, your business needs, and your users. We map out the goals, define core features, and create a tailored roadmap. By the end, you’ll know exactly what we’re building, why it matters, and how it will deliver value giving you confidence before a single line of code is written.
Design and prototyping
We create stunning, user-friendly interfaces that not only look great but also enhance user engagement and satisfaction.
Development
We build a beautiful, robust, scalable, and secure software, ensuring it meets your requirements and performs flawlessly.
Testing and quality assurance
Every feature is rigorously tested to ensure flawless performance, reliability, and security.
Launch and support
We deploy your solution with confidence and provide ongoing support to keep it performing at its best.