Create your Custom Appwith integrated AI

Tailored technology for businesses that want to grow without needing a tech department. We design and develop your app with integrated AI, from idea to launch.

Guaranteed fixed price
100% ownership of source code
Support in 4 languages
Results in 2-4 weeks

Your business needs an app but you don't know where to start?

Symbionix was born to bridge the gap between enterprise technology and the real needs of your business.

Self-Diagnosis

We can help you with that.

A custom app solves it.

Why build your custom app?

60% revenue

An app removes friction in login, payments, and repeat purchases—boosting conversion and recurrence without extra acquisition spend.

+20–60% revenue
Growth projection through mobile app use
An app removes friction in login, payments, and repeat purchases—boosting conversion and recurrence without extra acquisition spend.

Custom apps that work the way you need

Progressive Web Apps (PWA)

Work like a native app from the browser, no download needed. Ideal for product catalogs, client portals, and internal management systems.

Native Mobile Apps

Built with Swift (iOS) and Kotlin (Android) for maximum performance. Ideal when you need full access to device hardware.

Hybrid Apps

iOS and Android apps built with a single codebase. Reduces costs by 30-50% while maintaining a native experience.

Dashboards & Panels

Custom panels to centralize your business data. Connect CRM, billing, social media, and email in one place.

AI Automations

We integrate AI into your app to automate repetitive tasks: email classification, document analysis, product recommendations, and intelligent chatbots.

Integrations & APIs

We connect your new app with the tools you already use: Stripe, WhatsApp, Google Workspace, Shopify, HubSpot, and any service with an API.

🚀PROCESS

From idea to your app in 5 steps

A clear, transparent process. This is how we turn your idea into reality.

01

Strategic Consultation

We understand your business, processes, and goals. We identify what type of app you need and where AI can generate the greatest impact.

02

Proposal & Scope

We present a detailed document with features, technologies, fixed price, and delivery timeline.

03

UX/UI Design

We create wireframes and interactive prototypes so you can see and test your app before a single line of code is written.

04

Agile Development

We build your app in 2-week sprints. Each sprint shows real progress and you can give feedback.

05

Launch & Support

We deploy your app, train your team and provide ongoing technical support.

Want to see what your app could look like?

Apps for every type of business

Beauty & Wellness

Online booking with real-time availability, client profiles with treatment history, loyalty program and automatic WhatsApp reminders.

Beauty & Wellness

Can't find your industry?

Why choose Symbionix

AI has democratized the technology that was once only within reach of large corporations.

🧠

AI from the design phase

We integrate artificial intelligence from the design phase, not as an afterthought.

🎯

Specialists in your business

We understand budgets, timelines, and the needs of growing businesses.

Modern stack

React, Next.js, Node.js, Swift, Kotlin — fast, scalable, and maintainable apps.

🌍

4 languages, 3 markets

Spanish, English, Italian, and Catalan. Spain, LATAM, and USA.

🔒

No vendor lock-in

100% your source code. No tech dependency.

💰

Fixed budget

The agreed price is the final price. No hidden costs.

Real results for real businesses

Biopulse

Biopulse RM

Real-time heart rate monitoring

Challenge

Gyms needed to monitor heart rates in real time, with visual data for trainers and gamified motivation.

Solution

Complete ecosystem with native apps for users and trainers featuring BLE sensors, real-time dashboard, per-member effort zones, post-workout summaries and AI-powered recommendations.

Stack
ReactNode.jsSwiftBluetooth BLEWebSocketsPostgreSQL
+2000

monthly sessions

+30%

client retention

Transparent investment, no surprises

Fixed price, your source code, training included.

App Starter

MVPs and simple apps.

From
3,900
4-6 wks
UX/UI Design
Frontend + Backend
Deployment
3 months support
Most popular

App Business

Advanced features and AI.

From
9,900
6-10 wks
Everything in Starter
Multiple integrations
Admin panel
AI automations

App Enterprise

Complex solutions.

From
19,900
10-16 wks
Everything in Business
Scalable architecture
Multi-role
Advanced AI + Priority support

The best technologies on the market

The same tools used by Netflix, Airbnb, and Uber.

Web

React / Next.js

Node.js / TypeScript

Tailwind CSS

Mobile

React Native

Swift (iOS)

Kotlin (Android)

Artificial Intelligence

OpenAI / Claude API

Open-source models

LangChain / RAG

Databases

PostgreSQL / Supabase

MongoDB

Redis

APIs & Integrations

Stripe / PayPal / Redsys

WhatsApp Business API

Google Maps / Twilio

Shopify / HubSpot

Infra & DevOps

Vercel / AWS

Docker / CI-CD

Auth0 / Firebase Auth

Frequently asked questions about custom app development

Your business deserves custom technology. Let's talk.

Whether it's your first app or you want to replace a system that no longer works — tell us your idea and we'll show you how to make it happen, what technology you need, and how much it will cost. No commitment.