Custom App Development

Pro

Ander Sanjuan

Starting at

$

25

/hr

About this service

Summary

design and build custom web apps using no-code tools like Bolt AI—fast, responsive, and intelligently crafted. Whether you need a productivity tool, internal dashboard, focus timer, or a unique idea brought to life, I deliver apps that look great and work even better.
With a strong foundation in both UX design and logic engineering, I focus on building clean, modern interfaces backed by smart, dynamic behavior. From timer flows and conditional automations to responsive layouts and light/dark mode, every detail is designed for real-world use.
Need AI-powered features or habit-building mechanics? I’ve got you covered. You’ll get a complete app tailored to your goals, plus design polish, performance, and documentation—ready to launch or scale.

What's included

  • Custom App Build

    A fully functional app tailored to your needs using Bolt AI or no-code tools.

  • UX/UI Design

    Clean, intuitive interface design for smooth user experience across devices.

  • Smart Logic & Automation

    Built-in flows, timers, and condition-based logic to power your app’s behavior.

  • Responsive Layout

    Mobile- and desktop-friendly design that adapts seamlessly to any screen.

  • Basic Analytics

    Simple, built-in insights to track user sessions or app engagement.

  • Light/Dark Mode

    Polished theme options for modern, accessible user experiences.

  • Final Handoff

    Clean documentation and support to hand over your project with confidence.

Example projects

Focus Timer with Bolt AI

Second Brainer

Recommendations

(5.0)

Ghulam Hussain

Client • Jan 10, 2025

Recommended

Ander made the whole process easy. Great communication, quick delivery, and solid results. Would happily work with him again.

Shabtha Kesav

Client • Dec 30, 2024

Recommended

I recently had the pleasure of working with Ander on a UX/UI project, and I cannot recommend his service highly enough! From the very beginning, he demonstrated exceptional professionalism, creativity, and attention to detail.

Syed Tariq

Client • Sep 18, 2024

Recommended

I had the privilege of working closely with Ander and was genuinely inspired by his unwavering drive and forward-thinking mindset. He consistently prioritizes user-centered applications and demonstrates remarkable critical thinking skills. Ander's approachable nature fosters a collaborative and enjoyable work environment. He's a true asset to any team, consistently delivering impactful and meaningful results.

Skills and tools

Design Engineer

Frontend Engineer

UX Engineer

Bolt.new

Bolt.new

Figma

Figma

Industries

Computer Software

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