Web applications & digital growth
Web applications, made to work.
Direct access. Practical progress. A partner genuinely invested in your success.
I design and build refined digital products that help businesses attract more people, convert more opportunities, and keep improving after launch.
A boutique consultancy led by Andrew Cates — I take on a limited number of clients at a time, so every project gets my full attention.
Selected work
A body of work — from conversion-focused sites to serious platforms.
CarelineOS
2026Multi-tenant SaaS platform
An operating system for appointment-based service businesses — booking, payments, memberships, clinical records, and a lead-gen engine in one platform.
- Multi-tenant
- Payments
- Booking
- Compliance
- Next.js
RooflineOS
2026Seasonal field-service platform
Field-service software shaped around a season — measure the roofline from satellite, design the display, quote it, install it, and take it down as one job.
- Field service
- Seasonal scheduling
- Mapping
- Multi-tenant
- Next.js
CrewlineOS
2026Field-service platform for trades
Field-service software for trade crews — booking to quote to job to invoice, with nothing re-typed in between.
- Field service
- Dispatch
- Invoicing
- Multi-tenant
- Next.js
Deal Night
2026Home poker organizer
An all-in-one app for organizing recreational home poker games — scheduling, RSVPs, a synced blind timer, and live results without the group-chat chaos.
- Realtime
- Supabase
- Vercel Blob
- Next.js
Glow by Kristy
2026Mobile spray-tan business
A marketing site and booking app for a mobile spray-tan business — a multi-step booking wizard, session-balance packs, and real accounts with SMS notifications.
- Booking
- Stripe
- Supabase
- Twilio
ARCA Salon
2026Luxury hair salon, Costa Mesa CA
An editorial marketing site that converts Instagram attention into bookings for a premium, fashion-grade salon.
- Editorial
- Conversion
- Booking
Create · Improve · Care · Grow
One dedicated partner for the whole life of your product.
From the first build through ongoing improvement, one accountable partner keeps your product healthy and helps it earn more attention and more business.
Create
Design & build
The core project engagement: turning an idea into a production-grade web application through a high-iteration design process.
Improve
Optimize what exists
Project-based improvements to lift conversion, performance, accessibility, and reach after launch.
Care
Ongoing partnership
The monthly recurring relationship — part maintenance, part online coach for your digital presence.
Grow
Traffic & lead generation
Higher-value advisory that puts more of the right eyes on your pages and turns them into customers.
Your online growth coach
The point isn’t a website. It’s more business.
Once your site is live, the real work begins: getting more eyes on your pages, and turning those visits into sales, bookings, and leads. I track it, explain it, and keep improving it alongside you.
See how it worksMore eyes on your pages
I monitor traffic and search visibility, spot dips before they hurt, and lay out exactly how to bring more of the right visitors in.
Lead generation, built in
Landing-page campaigns, funnels, and follow-up automation that turn attention into qualified leads — a differentiator most studios skip.
Optimized, continuously
Ongoing performance and conversion work so your site loads faster and turns more visitors into customers over time.
Advice you can act on
Plain-language monthly reporting on what changed, why it matters, and the one thing worth doing next.
Capabilities & add-ons
Add what your business needs, when it needs it.
Every build starts with a beautiful, reliable core. These are the capabilities I layer on top — booking, payments, lead capture, AI, and more — each proven across real client work and priced per project or bundled into a plan.
Online Booking & Scheduling
Turn interest into a booked appointment.
Payments & Subscriptions
Get paid — one-off, packs, or recurring.
Endless Control, Instant Speed
A storefront that loads like a static page, updates like a live app, and keeps your backend swappable, not permanent.
Content Management
Edit your own site — no developer required.
Email, SMS & Notifications
Reach customers the moment it matters.
Analytics & Traffic Insight
Know what’s working — and what to do next.
Reviews & Reputation
Let your best customers sell for you.
AI Assistants & Automation
A helpful assistant, on brand and on message.
Care plans
Keep it healthy. Keep it improving.
Once your application is live, a monthly plan keeps it healthy, improving, and growing. Start light with monitoring, or bring on a hands-on partner.
Watch
Know when something changes.
Automated monitoring and a monthly health summary so you always know how your site is performing.
- Uptime & performance monitoring
- Monthly traffic & health summary
- Security & dependency alerts
- Email support
Care
Keep the application healthy.
Monitoring plus prioritized support and a set allowance of changes each month.
- Everything in Watch
- Prioritized support
- A monthly allowance of changes
- Quarterly strategy call
- Faster response times
Guide
Most popularKnow what to improve next.
Ongoing consulting, optimization, and growth planning — your website’s online coach.
- Everything in Care
- Monthly strategy & analytics review
- Conversion & performance optimization
- Traffic growth recommendations
- More changes each month
- Priority response times
Partner
Continually build and grow.
A customized product and growth partnership with dedicated time, lead generation, and roadmap ownership.
- Everything in Guide
- Dedicated monthly development time
- Lead-generation campaigns
- Roadmap & product ownership
- Direct line, fastest response
Plans are a starting point and can be tailored to your business. Project work, lead-generation campaigns, and larger changes are quoted separately.
A personal note
You’ll always know exactly who’s responsible.
When you hire me, I stay responsible — from the first conversation through the code that ships and the improvements that follow. You get one accountable partner who understands the work and keeps its context.
If that’s the kind of partner you’ve been looking for, I’d love to hear what you’re building.
Andrew Cates
Founder · Cates Works
Let’s talk
Have a project, or a product that could work harder?
Most projects begin with a short, no-pressure discovery call.