Gevix Start a project
Menu
Work Services Clients FAQ Blog Contact

We design and build software people enjoy using.

Gevix is a studio of eleven designers and engineers. We take websites, web apps, mobile apps and SaaS platforms from a rough idea to paying customers, and we stick around after launch.

Start a project See our work
Since 2019 Three to five people per project European and US hours
LedgerlyNorthloopCartwrightPillar HealthHalden StudioNordwall FilmsBright & Co

What we build

Five kinds of work, one team. Everything starts with design and most of it carries straight on into engineering, so the people who drew the screens are the ones who ship them.

Web apps

Customer portals, marketplaces, internal tools. Built in React and Next.js with the accessibility and performance work done during the build, not filed for later.

Mobile apps

iOS and Android from one codebase with React Native, or native Swift and Kotlin when the app needs the hardware. We handle App Store and Play Store submission.

SaaS platforms

Multi-tenant products with billing, roles, onboarding and an admin your support team can actually use. We design the pricing page and the upgrade flow too.

Websites and web design

Marketing sites, brand sites and launch pages that load fast and read well on a phone. Designed in Figma, built in Framer or Next.js, with a CMS your team can edit without us.

SEO

Technical SEO on everything we ship: clean markup, fast Core Web Vitals, structured data and a sensible site map. Plus keyword research and a content plan when you want to grow search traffic on purpose.

Already have engineers? We design, test with users, and hand off a Figma library with a written spec your team can build from.

The same people draw it and build it. Nothing gets lost in between.Most products get worse at handoff: the designer moves on, the engineer guesses. At Gevix the designer sits in the pull request and the engineer sits in the Figma file, from kickoff to launch.

Selected work

Four projects we're proud of. There are more behind NDAs; ask and we'll walk you through them on a call.

  • Ledgerly

    Bookkeeping SaaS for small agencies. We designed and built the product, the Stripe billing system and the accountant portal, then ran the first three months of support alongside the founders.

    WebSaaS202514 weeks

    Customer onboarding cut from forty minutes to six.

  • Northloop

    Training app for road cyclists with ride plans, a coach chat and Strava import. One React Native codebase for both stores, with a small Node service for the coaching queue.

    iOSAndroid202416 weeks

    4.8 stars on both stores and 31,000 installs in the first year.

  • Cartwright

    Dispatch platform for a regional haulage firm: a web console for the office and a driver app with offline proof of delivery. Live positions come from the drivers' phones, not extra hardware.

    WebiOSAndroid202412 weeks, then monthly team

    Replaced three spreadsheets and a WhatsApp group for 140 drivers.

  • Halden Studio

    A new website for an architecture practice: identity refresh, a project archive with 60 case studies, and a journal the partners write themselves. Built in Framer so the studio edits everything without us.

    WebsiteWeb design20255 weeks

    Enquiries up 2.4 times in the first quarter, and every page loads in under a second on 4G.

See all work

What clients say

From the founders and product leads we've shipped with. Ask us for their details; they're happy to take a call.

“They spent the first week in our depot with the dispatchers. The console works the way the job actually works, not the way a diagram says it should. Our drivers, who hate software, use it without being told to.”

H
Helen CartwrightOperations director, Cartwright Haulage

“We'd been burned by an agency that handed over Figma files and disappeared. Gevix built the thing, then stayed through the messy first month.”

P
Priya RamanCo-founder, Ledgerly

“Friday demos on a real staging URL meant there was never a surprise. By week ten our beta riders were already using it.”

D
Daniel AchterbergFounder, Northloop

“We're architects; we care how things look and we're hard to please. The site is the first thing we've had that feels like us, and we publish to it ourselves.”

I
Ingrid HaldenPartner, Halden Studio

“They designed our patient portal around what our nurses actually do, not what the old system did. The first version shipped in eleven weeks and we've had two complaints since.”

S
Dr Samuel AdeyemiClinical director, Pillar Health

What we build with

A deliberately short list. Boring, well-supported tools mean your next engineer can pick the codebase up without us.

Design
Figma, FigJam, Framer for marketing sites
Web
TypeScript, React, Next.js, Tailwind
Mobile
React Native with Expo; Swift and Kotlin where native is needed
Backend
Node, Postgres, Prisma, Supabase, Stripe for billing
Infrastructure
Vercel, AWS, GitHub Actions, Sentry, PostHog

Ways to work with us

Pick the shape that fits where your product is. All three come with a named lead you can message directly, and a weekly written update.

8 to 16 weeks

Fixed-scope project

A defined product, a written scope and a price agreed before work starts. The usual way to build a first version.

Best for a new product or a full rebuild

3 months minimum

Monthly team

Two to four Gevix designers and engineers working inside your team, month to month, on a plan you set each week.

Best for growing a product after launch

2 weeks

Design sprint

Two weeks from a problem statement to a clickable prototype tested with five users, plus an honest build estimate.

Best for deciding what to build first

Questions we get asked

If yours isn't here, the first call is free and we'll answer it there.

Do you work with early-stage companies?

Yes. About half our projects are first versions for funded startups. We'll tell you honestly if a two-week design sprint is a better first step than a full build.

Can you take over an existing product?

Yes. We start with a two-week audit of the codebase and the design, then propose what to keep, what to fix and what to rebuild, with a cost for each.

Who owns the code and the design files?

You do, from day one. Code lives in your GitHub organisation and the Figma files sit in your workspace. If we part ways, nothing needs to be transferred.

How do you price a project?

Fixed-scope projects get a fixed price after discovery. Monthly teams are a flat rate per person per month. We don't bill by the hour.

Is SEO included, or extra?

The technical side is included in every website and web app: semantic markup, fast load times, structured data, meta tags and a site map. Keyword research, content planning and ongoing optimisation are a separate monthly engagement.

What happens after launch?

Thirty days of fixes are included. After that, most clients keep a smaller monthly team; the rest take a full handover with documentation and a recorded walkthrough.

Writing

Notes from the studio on process, design and engineering. Written by the people doing the work, not a content team.

Process

Why we start engineering in week five

Waiting for every screen to be finished before writing code is how projects slip. Here's how the overlap actually works.

12 Aug 20266 min read
Design

The handoff problem, and how we avoid it

Most products get worse the moment a designer hands over a file. We stopped handing over.

28 Jul 20265 min read
Engineering

React Native in 2026: when we still go native

One codebase for both stores is the default. These are the four cases where we don't.

9 Jul 20268 min read
All posts

Tell us what you're building.

A few lines about the product, who it's for and when you'd like it live is plenty. A partner reads every message and replies within a business day, usually the same afternoon.

Start a project Book a 30-minute call
Chat on WhatsApp