Service 04
Custom apps that connect with your business
Scalable mobile and web solutions for ecommerce, bookings, internal management or services, designed with you from scratch.
From €1,200 · 20–40 days
From apps for your customers to internal tools for your team, focused on functionality, performance and scalability.
Apps built around your business
We build custom apps that connect with your business: from mobile solutions for your customers to internal tools for your team.
We work with native technologies (iOS/Android) and cross-platform frameworks such as Flutter or React Native, ensuring compatibility, speed and a great user experience.
Custom integrations and features
We integrate payment gateways, CRMs, external systems via APIs and custom admin panels. Every app is designed to automate processes and scale without limits.
User-centred design, security and maintenance
We apply UX/UI principles from the first phase so your app is functional, attractive and easy to use. We follow secure standards and clear documentation to make updates easy and keep it stable long term.
Usual technologies
- Flutter
- React Native
- React
- Node.js
- Firebase
- APIs REST
Benefits
Why choose us
- 01
Cross-platform
iOS, Android and PWA from one solid base.
- 02
Integrations
Payment gateways, APIs and external systems.
- 03
Professional UX/UI
Designed around the people who use it.
- 04
Scalability
Architecture ready to grow without limits.
FAQ
Questions about
app development
Can't find what you're looking for? Email us at info@13solutions.es.
How much does a website or an app cost?
It depends on the type of project, its complexity and the services included. For example, a basic website starts at €450, while a custom mobile app can go above €1,200. We always give you a tailored, no-obligation quote.
How long does a project take?
It depends on the type of work. A website can be ready in 10 to 15 days, a custom plugin in 2 to 3 weeks and an app in 20 to 40 days. We give you an exact estimate once we know the project requirements.
What technologies do you use?
We work with modern technologies such as WordPress, WooCommerce, React, Flutter, Node.js, PHP, Tailwind, HTML/CSS and REST APIs, and platforms like Make, Zapier or Copilot Studio, depending on what fits the project best.
Do you offer maintenance after delivery?
Yes. We offer technical maintenance and update plans so your project stays secure, up to date and optimised. We can also take care of hosting and monitoring if you wish.
From the blog
Learn more about app development
Custom development
Available for new projects
Got a project in mind?
Tell us about it and we'll reply with a no-obligation proposal. If you can imagine it, we can code it.
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