Web development, apps, AI and automation · Valladolid
Experts indigital development

- Startups
- SMEs
- Agencies
- Ecommerce
- Established brands
Digital development
Your technical team that designs, builds and automates every digital project. Websites, apps, plugins and AI chatbots that really work and grow your business.
What sets us apart
from other agencies
From idea to delivery, and beyond.
13 Solutions
- Custom solutions for your brand
- Clear prices, no-obligation quote
- Clear timelines: a website in 10–15 days
- You only hire the phase you need
- You talk directly to the developer
- Maintenance, hosting and monitoring
Other agencies
- Generic templates for everyone
- Vague costs and surprises
- Slow processes, timelines that drag on
- Fixed packages and long contracts
- Account managers in between
- They leave you alone after delivery
Services
Custom development.
Real results.
Websites, apps, plugins, chatbots, automations and marketing that work for your business.

Real project
Yoga AllianceCustom plugins and Salesforce integration01 · Web development
Fast websites that convert
WordPress, Laravel or React. Speed, intuitive experience and SEO from day one. From €450, live in 10–15 days.
Web development24/7 AI chatbots
On your website, WhatsApp or social media. They answer, guide and capture leads while you sleep.
Smart chatbotsAutomation and funnels
From form to CRM to email without lifting a finger. Make, Zapier, HubSpot and more.
AutomationMeasurable quality
Every delivery aims for top scores in performance, accessibility and SEO.
Pricing and timelinesPlugins and apps
What generic solutions can't do
WordPress and WooCommerce plugins, API integrations and custom iOS, Android and SaaS apps.
Custom plugins App development- 01
Custom web development
We design and build fast, secure websites fully tailored to your needs.
from €450 - 02
Custom plugins
Custom plugins for WordPress and other platforms that add features, automate processes and fit the way your business works.
from €350 - 03
Digital marketing
Campaigns designed to convert: we study your audience, optimise every stage of the funnel and measure every result.
from €350/month - 04
App and platform development
Scalable mobile and web solutions for ecommerce, bookings, internal management or services, designed with you from scratch.
from €1,200 - 05
Automation and digital funnels
Digitise your processes with strategic funnels and smart automations that work for you 24/7.
from €480 - 06
Smart chatbots
Virtual assistants that inform, guide and answer questions in real time on your website, WhatsApp or internal systems.
from €180 - 07
Existing design implementation
Already have your design ready in Figma, Adobe XD or another tool? We turn it into a fully working platform.
custom quote - 08
Cybersecurity and penetration testing
We attack your website, store or application in a controlled way to find weaknesses before a real attacker does, and help you close them.
custom quote
Strategy and executionCode that works
Code that really works
Agile methods, web standards and rigorous testing to guarantee performance, scalability and reliability.
Start a project- Plugins built30
- Lines of code written+250.000
- AI and API integrations50
- Automations deployed120
Reviews
We build so others can shine
Agencies, designers and companies that trust us as their technical team.
“Working with 13 Solutions has been a turning point. As a freelance designer, I needed someone who could turn my ideas into clean, fast builds with no surprises. They're always available, they understand the language of design and turn it into real code that works.”
“13 Solutions is our technical extension. We design, they build. Their work has let us grow without expanding our in-house team. We recommend them without hesitation.”
“Our agency needed a partner who could handle web and app development without slowing down our delivery. With 13 Solutions we found exactly that: efficiency, clear communication and flawless delivery.”
Integrations
Connects with everything.
CRMs, payment gateways, bookings, email marketing and automation with the tools you already use.
See services- 18+ Technologies
- CRM HubSpot, Salesforce, Zoho
- Payments Stripe, PayPal, Redsys
- Workflows Make, Zapier, Copilot Studio
Technologies: WordPress, WooCommerce, Laravel, React, Flutter, Node.js, PHP, Tailwind, Moodle, Salesforce, HubSpot, Zoho, Stripe, PayPal, Redsys, Make, Zapier, Copilot Studio.
Pricing
Clear prices,
no small print
Guide “from” prices: the final quote depends on scope. Maintenance, support and scaling available.
Custom quote with no obligation
Professional website
from €450
Live in 10–15 days
I want my website- WordPress responsive
- Custom design
- Core SEO
- Form and legal pages
Automation and funnels
from €480
Connected to your CRM
Automate my business- Lead and sales funnel
- Make or Zapier
- CRM and email marketing
- Monthly report
Mobile app or SaaS
from €1,200
In 20–40 days
Let's talk about your app- Android and iOS
- UI/UX design
- App store publishing
- APIs and CMS
What services does 13 Solutions offer?
We offer web development, mobile apps, custom plugins, automation, digital funnels, smart chatbots and implementation of existing designs. Every project is built around your business goals and designed to scale and streamline your processes.
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.
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.
What if I don't know exactly what I need?
Don't worry. We advise you with no obligation: we meet, look at your goals and propose solutions that fit your budget and real needs.
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.
Trusted by



AI and chatbots
WordPress and ecommerce
Custom development