We develop
your mobile and web app!
The Coastline Company is a collective of freelance experts in mobile and web app development.
From product design and project management to development and strategic guidance — we have everything you need to build and grow your business.
Our Expertise
Flutterflow
Firebase
Supabase
Make
Stripe
Buildship
Our Team
Marc
Guillaume
Rénald
Julien
Ben
Sacha
Lika
Our Services
Ready-to-Launch MVP
1 month
✅ 1 week of custom mobile UX/UI design
✅ 3 key user flows (defined together)
✅ iOS & Android development via FlutterFlow
✅ Backend with Firebase or Supabase
✅ App Store & Play Store publishing included
✅ 2 weeks of post-launch support
💰 €6,000 excl. VAT – Payable in 2 installments
Scalable Custom App
3 months
✅ 2 weeks of tailored UI/UX design
✅ 1 week of architecture & database setup
✅ Fully custom user flows, defined with your team
✅ Advanced features: push notifications, analytics, social login, etc.
✅ App Store & Play Store publishing
✅ 1 week of user testing
✅ 2 weeks of post-launch support
💰 €16,000 excl. VAT – Payable in 3 installments
Enterprise Solution
6 months
✅ Mobile app (iOS & Android) for your users
✅ Web back-office app for internal teams or clients
✅ Advanced user management (roles, permissions, security)
✅ Bilingual app (English/French)
✅ API integrations with internal tools (ERP, CRM, etc.)
✅ App Store & Play Store publishing
✅ 2 weeks of user testing
✅ 2 weeks of post-launch support
💰 €30,000 excl. VAT – Payable in 3 to 4 installments
Trusted by
LEET
Leet is the app to easily book premium lifestyle services at home.
In just a few taps, access vetted professionals — from personal trainers and chefs to photographers — and customize your bookings by need, time, and location.
Features : Reservations, Service Offerings, Chat
Secteur : Lifestyle, Services
Warzonetryhard
Warzonetryhard is a web and mobile app designed to help players optimize their gameplay in Warzone.
Access expert-recommended loadouts from Nanou_FPS, build your own custom meta classes, and level up with official guides and coaching to improve your skills efficiently.
Features : Rankings, Online Courses, News
Secteur : Game, Entertainment
PokerPro
Texas Poker Pro delivers the ultimate poker experience with daily tournaments, tables for all skill levels, a built-in odds calculator, and advanced stats tracking.
Social features, a virtual shop, and personalized challenges enhance gameplay, with daily rewards and fun mini-games to keep the action going.
Features : Social Experiences, Advanced Statistics, Daily Tournaments
Secteur : Game, Entertainment
Kontnu
Warzonetryhard is a web and mobile app designed to help players optimize their gameplay in Warzone.
Access expert-recommended loadouts from Nanou_FPS, build your own custom meta classes, and level up with official guides and coaching to improve your skills efficiently.
Features : Service Exchanges, Social Visibility, Connection
Secteur : Life Style, Entertainment
A mobile app + dashboard
the perfect combo for businesses needing real-time information sharing between back office and field employees.
Employees get instant access to updates, while the back office can manage everything from one place — including document uploads/downloads, planning, and more.
Secteur : Internal tool
Ready to build your app?
Book a call with our team!