DevCru — Web & App Development Agency
What we build

What we build

Five focused services, executed end-to-end.

48h
Response
90+
Lighthouse
100%
Senior-led
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Web & phone app development

From founder-led MVPs to production SaaS and native mobile apps — we design, engineer and ship the full product. One crew, web and mobile, end-to-end.

Custom dashboards & SaaS
iOS & Android mobile apps
Authentication & roles

How we deliver

Design

Bespoke art direction tuned to your brand voice.

Engineering

Type-safe, tested, scalable architectures.

Performance

Sub-second loads, 90+ Lighthouse on every build.

SEO

Semantic HTML, structured data, content velocity.

Security

Auth, roles, RLS and audited dependencies.

Launch & care

We don't disappear after go-live.

01 / 04
End-to-end
SERVICE 01

Web & phone app development

From founder-led MVPs to production SaaS and native mobile apps — we design, engineer and ship the full product. One crew, web and mobile, end-to-end.

Product architecture

Domain modelling, data design and scalable architecture that won't need rewriting at 10× growth.

Web + native mobile

Responsive web app paired with iOS & Android builds that share logic, ship faster and feel native.

Auth, roles & billing

Secure authentication, granular roles, Stripe payments and subscription handling out of the box.

Analytics & ops

Built-in dashboards, event tracking, error monitoring and admin tooling so you actually know what's happening.

What's included
  • Custom dashboards & SaaS
  • iOS & Android mobile apps
  • Authentication & roles
  • Payments & subscriptions
  • Booking / scheduling
  • Real-time updates
  • Third-party API integrations
  • Admin & analytics panels
02 / 04
End-to-end
SERVICE 02

Website development

Marketing sites that win trust in the first three seconds and turn visitors into qualified conversations. Engineered for SEO, speed and longevity.

Brand-led design

Custom art direction that looks distinct in your market — no template aesthetic, no recycled hero.

SEO foundation

Semantic HTML, schema, sitemaps, OG metadata and a content model your team can actually update.

Sub-second loads

90+ Lighthouse on every page, optimized media, edge-deployed and built to stay fast as you grow.

Conversion craft

Clear hierarchy, trust signals, friction-free forms and tracking wired to your CRM from day one.

What's included
  • Modern responsive design
  • Conversion-focused UX
  • SEO foundation & schema
  • Headless CMS integration
  • Analytics & tag manager
  • Multilingual ready
  • Lead capture & forms
  • Sub-second performance
03 / 04
End-to-end
SERVICE 03

Website redesign

A full overhaul of an existing site without losing the SEO equity you've built. New design, new stack, same domain — and usually more traffic.

Audit & strategy

Heuristic, brand, SEO and performance audit before a single pixel changes. We rebuild with intent.

Visual overhaul

Modern design language, refined typography and motion — a brand asset you're proud to share.

SEO migration

Full URL map, 301 redirects, schema and metadata preserved or improved. We monitor rankings for 30 days post-launch.

Zero-downtime launch

We build on staging, review page-by-page and cut over in a low-traffic window. Users notice the upgrade, not the switch.

What's included
  • Brand & UX audit
  • Full visual overhaul
  • Responsive rebuild
  • SEO migration & 301 map
  • Content refresh & rewrite
  • A/B testing setup
  • Zero-downtime launch
  • Post-launch monitoring
04 / 04
End-to-end
SERVICE 04

Support & maintenance

An ongoing care plan so your product keeps shipping, stays secure and gets better every month. Fixed monthly fee, no surprises.

Security & updates

Dependency patches, vulnerability monitoring, SSL renewals and proactive hardening before incidents happen.

Performance & uptime

24/7 monitoring, alerting, Lighthouse regression checks and instant rollback on bad deploys.

Content & iteration

Monthly hour budget for copy edits, new sections, image swaps and small features — handled by the team that built it.

Always-on team

Same designers and engineers from launch day onward. One Slack message away, with 24/7 emergency response.

What's included
  • Monthly health checks
  • Security & dependency updates
  • Performance monitoring
  • Daily backups & recovery
  • Content & design updates
  • Uptime monitoring
  • 24/7 emergency response
  • Monthly progress reports

Direct naar een dienst

Uitgebreide informatie over aanpak, doorlooptijd en prijzen per dienst.

Website laten maken

Maatwerk zakelijke websites met SEO-fundament.

Webshop laten maken

E-commerce die snel laadt en converteert.

Web app laten maken

Portalen, dashboards en SaaS-platformen.

App laten maken

iOS en Android vanuit één codebase.

Website redesign

Vernieuwen zonder je zoekposities te verliezen.

Maatwerk software

Systemen rond jouw eigen proces.

Onderhoud en support

Updates, monitoring en doorontwikkeling.

Wat kost een website?

Prijsfactoren en reële bandbreedtes.

Wat kost een app?

Kostenopbouw van MVP tot lancering.

Website laten maken in jouw regio

Website laten maken AmsterdamWebsite laten maken RotterdamWebsite laten maken UtrechtWebsite laten maken Den HaagWebsite laten maken EindhovenWebsite laten maken HilversumWebsite laten maken Bergen op Zoom

Not sure which one fits?

Tell us about your project — we'll recommend the right service and reply within one business day.