Web and mobile apps for non‑technical founders.

Built by someone who thinks like a CTO. I scope, build and launch your product, and I'll tell you when something won't work.

  • You own the code and accounts
  • Plain-language updates
  • Based in Europe, working remotely

5.0on every rated project

3 live productsI run the technology for

iOS, Android, webFrom first version to the stores

Who I help

For founders with a clear idea and no tech team

You know the problem you're solving and who it's for. What you don't have is a technical co-founder, and you're not ready to hire a developer full-time. You need someone who can turn the idea into a real product, and who cares whether it's the right product.

I also work with small businesses that need a custom web or mobile tool, or an internal tool to replace the spreadsheets.

Sound familiar?

Building your first product shouldn't feel like a gamble

  • I don't know what to build first.

    Every feature feels essential, and the budget is finite.

  • I can't judge the tech choices.

    Which stack, which platform, native or web? You're asked to decide things you can't evaluate.

  • I'm afraid of paying for the wrong thing.

    Many developers build exactly what's in the brief, even when the brief is wrong.

  • The non-code parts stall everything.

    Accounts, payments, app stores, hosting, handover.

What I build

From first version to live product

Web apps and SaaS

Customer-facing products, dashboards and platforms, built to grow.

Mobile apps

iOS and Android apps, from first version to the App Store and Google Play.

MVPs on a lean budget

A focused first version that tests the idea before you spend more.

Internal tools and automation

Custom tools and workflows that take repetitive work off small teams.

How I work

From idea to launch, in four steps

  1. Understand

    I start with your business, not a feature list. What problem are we solving, for whom, and what would success look like?

  2. Scope

    I turn the idea into a clear plan: what to build first, what to leave out, which technology, and what it will cost. If something won't work, you'll hear it here, before money is spent.

  3. Build

    Short milestones you can click through and test. Plain-language updates, no jargon.

  4. Launch and hand over

    I handle the setup that usually stalls founders: hosting, payments, app stores. You end up owning everything and understanding how it works.

After launch, I can stay on as your part-time CTO.

Why founders choose Elcovate

A developer who thinks like a partner

Business first

Before building software I managed IT and automation projects for an insurance multinational and for agencies, so I start from the problem you're solving, not the ticket in front of me.

Honest advice

I'll challenge an idea when it won't work, and sometimes the right answer is a simpler, cheaper or even non-technical fix.

Plain language

You'll always know where the project stands and why each decision was made.

You own it

Code, accounts and documentation are yours from day one. No lock-in.

Apps I've built

Live products I run the technology for

fiid.io announcements feed in Finnish, with a notice about new safety shoes and a scaffolding inspection reminder
The fiid.io AI assistant explaining, in Finnish, how to report a hazard at work

fiid.io: workplace safety platform for small businesses

Employees report hazards with a photo or voice note, complete inspections and confirm they've read announcements. Admins follow everything in a web portal, and insurers and safety consultants manage their client companies. Includes an AI assistant that answers questions from the company's own data.

Platforms
iOS, Android, web
Live
6 languages, monthly subscription
Stack
React Native, Expo, Supabase, Hono
Part-time CTO
Home screen of the training app in one gym's green branding, with health score, steps and active programme
Analytics screen in Finnish with 30-day bar charts of a member's steps and activity points

Training and coaching app for gyms and clinics

Coaches build programmes and follow members' progress. Members log workouts, track activity, sync with Apple Health or Health Connect and message their coach. Each gym gets the app in its own branding.

Platforms
iOS, Android
Data
EU servers
Stack
React Native, Expo, Supabase, Hono
Part-time CTO
Anfalia home page: Redefining global protection for a life without borders

Anfalia: protection for people who live across borders

A peer-to-peer protection community for expats, digital nomads and mobile workers, whose cover moves with them. I co-founded it and lead the technology.

Platforms
Web
Stack
React, Supabase
Co-founder, tech lead

On every project: scoping, architecture, building, app store and hosting setup, and ongoing development.

What clients say

Rated 5.0 on every reviewed project

Reviews from verified Upwork clients

“Hard worker, understands the bigger picture, pleasant to work with.”
Repeat client, ROI calculator project
“He has more of an eye for detail than any other freelancer I've worked with on this platform… he clearly knows European quality standards.”
Client, AI coaching assistant
“He helped me understand what was wrong with my Bubble app in under 20 minutes. Great communication… 100% hiring again.”
Founder, app consultation
Coen Elferink, founder of Elcovate

About

Hi, I'm Coen.

I founded Elcovate to be the technical partner I'd want if I were a non-technical founder: someone who builds well, explains clearly, and tells you the truth about your idea.

Before building software, I managed IT and automation projects for an insurance multinational and for agencies. That's where I learned to start with how a business actually works, and to spot when the planned solution isn't the right one.

Today I build web and mobile apps for founders and small companies, and act as part-time CTO for two startups, alongside co-founding my own.

Connect on LinkedIncoen@elcovate.com

Questions

Before you get in touch

Do I need a technical background to work with you?

No. Most of the founders I work with don't have one. You'll get plain-language updates and the reason behind every decision, so you always know where the project stands.

What does it cost to build my app?

That depends on what we build first. In the scoping step you get a clear plan: what to build first, what to leave out, which technology, and what it will cost. You see the cost before any money is spent on building.

Who owns the code and the accounts?

You do, from day one: the code, the accounts and the documentation. No lock-in.

Do you build for both iPhone and Android?

Yes. I build iOS and Android apps and web apps, and handle the App Store and Google Play setup.

I already have a product that needs work. Can you help?

Yes. I start by looking at what's there and tell you honestly what's worth keeping and what isn't.

What happens after launch?

After launch, I can stay on as your part-time CTO for ongoing development and the technical decisions that come next.

Start a conversation

Tell me about your idea

A few lines is enough. I'll read it properly and reply within two working days with honest first thoughts, and whether I'm the right fit.

Prefer email? coen@elcovate.com

I use your details only to reply to you. See the privacy notice.