Regrow
Regrow trusted us as their engineering partner, and we've been building together ever since — a long-term collaboration based on trust, close teamwork and reliable delivery.
Software studio · Sousse, Tunisia
Web & mobile software, built to last
We design, build and maintain websites, mobile apps and business software for startups and established companies — one senior team from discovery to launch and long-term support.
- Years of engineering
- 5+
- Products built
- 6+
- Countries served
- 2
- Working languages
- 3
Trusted by teams in Germany and Tunisia
What we do
Web, mobile and SaaS — built around your business
From the first workshop to production and beyond, we cover every stage of your product so you don't have to coordinate multiple vendors.
Web applications
Fast, secure web platforms, portals and dashboards — from a first MVP to products used every day by thousands.
Mobile apps
iOS and Android apps with a native feel, published on the App Store and Google Play and maintained after launch.
SaaS platforms
Multi-tenant SaaS with subscriptions, roles and billing, engineered to scale as your customer base grows.
Tailor-made software
Custom business software — ERPs, back-offices, compliance and internal tools — shaped around how your team works.
UX/UI design
User research, UX flows and UI design that make your product easy to use and consistent across web and mobile.
Product strategy
Discovery workshops, scoping and technical planning that turn an idea into a clear roadmap, budget and architecture.
Selected work
Products we've shipped
A selection of platforms and apps we've designed and built for clients in Germany and Tunisia.
Vaulticx
A GDPR-compliant, multi-tenant SaaS for sending files and sensitive data securely, with end-to-end encryption.
- End-to-end encrypted transfers with tenant isolation
- Stripe subscriptions with usage-based billing
- Outlook add-in to send securely straight from the inbox
- Cypress end-to-end suite with 90%+ coverage in CI/CD
MedBridge
A training platform for medical students preparing for the residency exam, available on mobile and web, with a back-office for the teaching team.
- MCQ and flashcard sessions scored like the real exam
- Revision queues, study planning and progress history
- Custom playlists, shared courses and an anonymous forum
- Admin dashboard to manage content, students and access
Fouma Pilates
iOS and Android apps that let a Pilates studio's clients book and pay for classes, with a dashboard for the team to run the schedule.
- Class booking and online payment from the phone
- Push notifications and reminders
- Sign in with Apple and account management
- Admin dashboard for sessions, levels, clients and receipts
TunAdvisor
A review platform for discovering and rating local businesses, with a mobile app for users and a web admin for the operations team.
- Map-based discovery, favourites and reviews
- Businesses can reply to reviews and publish opening hours
- Email verification and social login
- Admin with agents, sub-admins, categories and moderation
Testimonials
What our clients say
OSTRIX built our training platform for medical students, from the mobile app to the admin dashboard. They understood how our students revise and kept improving the product release after release.
Koraich RokbaniMedBridgeOur clients now book and pay for classes from their phone, and we run sessions, levels and receipts from one dashboard. OSTRIX delivered the iOS and Android apps and has supported us since launch.
Fatma GharzoulFouma PilatesWorking with OSTRIX has been a real pleasure. The team is responsive, reliable and easy to work with — they understand what we need and deliver it. We're glad to have them as a partner.
Oussema MerghniRegrow
Our products
Products we're building
Alongside client work, we design and run our own software products for the Tunisian market.
- Travel membership · TunisiaLaunching soon
Calibre
A membership platform for travellers, starting with airport lounge access — buy online, show a QR pass at the desk, and we handle settlement with partner lounges.
- Rotating QR passes that work offline
- Partner app for lounge desks
- Automatic month-end settlement
- Veterinary clinic software · TunisiaLaunching soon
PawPulse
Practice management for veterinary clinics, built with Tunisian vets: agenda, consultations, dispensing, invoicing and payments in one cloud app.
- Day agenda with one column per vet
- Invoices ready for Tunisian e-invoicing
- Cloud subscription with free trial
Process
A clear process, from first call to launch
A structured, transparent process: you always know what's being built, why, and when it will be delivered.
Discovery
We start by understanding your business, users and constraints. Together we define goals, success metrics and the scope that delivers the most value first.
Planning
We turn findings into a concrete plan: feature priorities, technical architecture, milestones and a realistic budget and timeline you can commit to.
Design
Our designers create wireframes and interactive prototypes, validate them with you, and deliver a polished UI system ready for development.
Development
We build in short iterations with regular demos, code reviews and clean, documented code — so you see progress every sprint and own a maintainable product.
Quality assurance
Automated and manual testing across devices and browsers, plus performance and security checks, before anything reaches your users.
Launch & support
We handle deployment and monitoring, then stay on for maintenance, improvements and new features through a support plan that fits your needs.
Have a project in mind? Tell us about it — we'll reply within one business day with next steps.
Start a projectFAQ
Frequently asked questions
Straight answers to what clients ask us most.
Still have a question? Email us directly
What services does OSTRIX offer?
We offer web development, mobile app development, custom business software, UX/UI design, product discovery and technical planning, content writing, and ongoing maintenance and support.
How can I get started with OSTRIX?
Send us a message through the form below or by email. We'll schedule a short call to understand your needs, then send you a proposal with scope, timeline and cost.
How long does it take to complete a project?
It depends on scope. A marketing website typically takes 2–4 weeks, an MVP 6–12 weeks, and larger platforms are delivered in phases. You'll get a detailed timeline after the discovery call.
What industries do you serve?
We work with startups and SMEs across e-commerce, SaaS, services, education and more. Our process adapts to your domain, and we bring in industry-specific expertise when needed.
How do you ensure the security of my project and data?
We follow secure development practices: access control, encrypted connections, dependency updates, code reviews and regular backups. We're happy to sign an NDA before any project discussion.
Do you provide ongoing support after project completion?
Yes. We offer maintenance and support plans covering bug fixes, security updates, monitoring and new features, so your product keeps improving after launch.
Contact
Let's talk about your project
Tell us what you're building and where you need help. We reply within one business day.
What happens next
- We reply within one business day.
- A short call to understand your goals and constraints.
- You receive a proposal with scope, timeline and cost.