Horizon DevBook a call

Web and mobile studio · Tunisia

Web and mobile apps, secure by design.

Horizon Dev designs and builds your websites, apps and platforms, using AI where it saves you time. For SMEs, startups and clients abroad. Live in a few weeks.

Book a callSee prices
  • Prices published
  • Free written quote
  • You own the code

Services and prices

What we build, and what it costs

Starting prices are published. After a first call, you get a free written quote with a fixed price.

  • Showcase website

    A fast, clear site that presents your business and makes people want to get in touch.

    From
    500 TND
    Timeline
    2–3 weeks

  • Online store

    Catalog, cart, online or cash-on-delivery payment, order tracking.

    From
    1,500 TND
    Timeline
    4–6 weeks

  • Mobile app

    Android and iPhone, published on Google Play and the App Store under your own accounts.

    From
    2,000 TND
    Timeline
    6–10 weeks

  • Business software

    One tool for your clients, sales, stock and invoices (CRM, ERP).

    From
    3,000 TND
    Timeline
    4–8 weeks

  • Custom platform

    Bookings, client portals, back office: a complete product built around your business.

    From
    5,000 TND
    Timeline
    Depends on scope

  • AI and automation

    Chatbots, automatic document reading, agents that handle repetitive tasks for you.

    From
    1,000 TND
    Timeline
    2–4 weeks

  • UI/UX design

    Your screens designed and tested in Figma before the first line of code.

    From
    400 TND
    Timeline
    1–2 weeks

  • SEO

    Get found on Google: technical audit, keywords, content and a report every month.

    From
    300 TND / month
    Timeline
    Results in 3–6 months

After launch

  • Hosting and backupsFrom 300 TND / year
  • Maintenance and security updatesFrom 60 TND / month

Our tools

  • React
  • Next.js
  • Astro
  • React Native
  • Kotlin
  • Node.js
  • PostgreSQL
  • Supabase
  • Python
  • Claude API
  • OpenAI API

Secure by design

Security isn’t an option. It ships with every project.

Most agencies bolt security on at the end, if at all. Every one of our projects starts from the same security baseline, at no extra cost.

  • HTTPS and security headers

    Encryption everywhere, with headers set against session theft and content injection.

  • OWASP check before launch

    The ten most common web vulnerabilities are checked before every launch.

  • Two-factor authentication

    The admin area is protected by a second factor, not just a password.

  • Automatic backups

    Your data is backed up, and restores are tested, not just promised.

  • Monitored dependencies

    The libraries we use are tracked and updated when a vulnerability is published.

  • Personal data

    Handled under Tunisia’s Organic Law 2004-63, and under the GDPR for your European clients.

Process

Five steps, no surprises

  1. 01

    Discovery

    A 30-minute call to understand your needs, your users and your budget.

  2. 02

    Written proposal

    Scope, fixed price and timeline, in writing, before you commit.

  3. 03

    Prototype

    The key screens in Figma. You approve them before development starts.

  4. 04

    Development

    A test version every week, so you see the product take shape.

  5. 05

    Launch and follow-up

    Go-live, app store publishing, then maintenance and new features.

Ways to work together

Three ways to work with us

Fixed price

A clear scope, a fixed price, a delivery date.

Websites, stores, well-defined apps

MVP in 4 to 8 weeks

The first version of your product, to test the market fast without waste.

Startups and new projects

Dedicated team

Horizon developers embedded in your team, billed monthly.

Companies and clients abroad

FAQ

What people ask before we start

How much does a website or app cost?

Our starting prices are listed above. After a first call, you get a free written quote with a fixed price.

How long does it take?

Plan on 2 to 3 weeks for a showcase site, 4 to 6 for an online store and 6 to 10 for a mobile app. The exact timeline is in the proposal.

How does payment work?

In installments: a deposit at the start, then a payment at each approved milestone.

Who owns the code?

You do. At the end of the project you receive the source code and every access. The domain name, app store accounts and hosting are in your name.

Do you handle hosting and maintenance?

Yes, if you want: hosting and backups by the year, security updates and small changes by the month. Prices are listed above.

Do you work with clients outside Tunisia?

Yes. We work in French, English and Arabic, fully remotely if needed.

Contact

Let’s talk about your project

Describe it in a few lines. The message opens in WhatsApp, ready to send: nothing goes out until you tap Send.

Prefer email? contact@horizondev.tn