MANGYBYTE
// dev · build · ship
Independent app studio crafting experiences across mobile, wearable and web. Current projects include competitive racket-sports club and league management, smartwatch score tracking, UK planning-application alerts, and a children's printable coloring studio.
View ProjectsProjects
Apps and games built with passion, shipped to real platforms, used by real people.
MB Planning Alerts
UK planning-application tracking and email alerts. MB Planning Alerts watches local council planning registers and emails you the moment a planning application is submitted near your home — ideal for homeowners, neighbours and home buyers. Search any UK address free; Premium is £3.99/month or £29/year for unlimited saved areas and instant alerts. Covers hundreds of councils across England and Wales.
CrayonCabin
A children's printable coloring studio. Thousands of coloring pages across twenty themes — animals, space, dinosaurs, mindful patterns and more — with new pages added every day, for every age from toddlers to adults. Print free pages instantly, buy individual packs, or go Premium for unlimited downloads, custom name sheets and family sharing. Gift subscriptions and an Education plan are available too.
SortedTrips
Free travel-planning tools in one place. Build a packing list for your exact trip, see where's hot each month, check passport and Schengen rules, split costs with friends and learn key phrases in seven languages. Free to use; Premium (£5/year) adds FCDO entry-rule change alerts for the countries you're visiting.
Racket Leagues
Multi-club, multi-sport league and fixture management for tennis, padel, squash and more. Clubs set up their own leagues, invite members, run box leagues or ladders, and track results — all from one app. Free for players; £9.99/month per club with a £5.99 one-off sponsor display unlock.
Racket Coach
Booking-and-management app for racket-sport coaches across tennis, padel, squash, table tennis, badminton and racketball. Coaches manage availability, take bookings, run group classes and term programmes — keeping 100% of lesson revenue. Flat £19.99/month + 50p per booking — never a percentage commission, unlike marketplace platforms that take up to 25%. UK launch. Player payments via Stripe.
Tennis Score Pro
Track your tennis matches directly from your wrist with a companion phone app for deeper stats and match history. A purpose-built scoring system for smartwatches that handles all the nuances of tennis scoring — sets, tiebreaks, and advantage rules — so you can focus on your game.
Watch App
Watch + Companion App
The Developer
MangyByte Ltd is an independent UK development studio. What started as a passion for building things has grown into a portfolio spanning mobile apps, wearable tech and web platforms.
From running competitive racket-sports leagues, to tracking scores from your wrist, to watching every UK planning register and filling rainy afternoons with coloring pages — every project is built with care, attention to detail, and a genuine love for creating software that people enjoy using.
The portfolio is growing. More apps and more platforms are on the way. Stay tuned.
Get In Touch
Got a question, feedback, or want to collaborate? Drop a line.
MangyByte Ltd — Independent Developer