Chat on Telegram“I need sign-in and payments”
BankID or email, Stripe or Swish, and receipts and VAT that add up. The part that looks simple until you try it.
Usually 3–5 days
Development on subscription
Tech should never be what holds you back.
An experienced developer on subscription, for founders building a company on their own. One flat monthly price, one task at a time, pause whenever you like.
The call costs nothing and you don't need to prepare anything. In Slack if you'd rather write, on Google Meet or Zoom if you'd rather talk.
How the subscription works
One flat price
The same amount every month. No hours to approve, and no invoice that turns out bigger than you expected.
One task at a time
You put the most important thing at the top. I build it, you test it, then we move on to the next thing in the queue.
Delivered in days
Most tasks are done within 48–72 hours. Anything bigger gets broken down until it isn't.
Pause whenever you like
No lock-in and no notice period. Pause between launches and pick up where you left off.
The first version
From an idea to something that actually exists
You don't need a spec, and you don't need to know what it's called yet. We start with the smallest version you can show a real user, get it out there, and let their reaction decide what we build next.
Already started building? Good.
You don't have to throw anything away. I'll take over what you have, whether you built it in an AI editor over a weekend or inherited it from a freelancer who stopped replying.
Show me what you've built- Lovable
- v0
- Bolt
- Next.js
- React Native
- Supabase
- Stripe
- Swish
- BankID
- Vercel
- Figma
You built it yourself
The prototype won't hold up for real users
What you built in Lovable or v0 works when you demo it. Then come user accounts, payments and real data — and what was quick to build becomes hard to trust. You don't have to start over. We harden what you already have.
Web and app
One person builds all three
The website, the web app and the mobile app are one product to your customer, so they should be one product to you too. No handover between two suppliers, and nobody blaming the other when something doesn't add up.
The hard parts
Sign-in, payments and data
BankID, Stripe, Swish, receipts, VAT and handling personal data properly. It's the part that looks simple in a demo and decides whether you can actually get paid.
Advice
Someone to ask before you decide
Native or web, your own server or a cloud service, build it yourself or bring someone in. Asking costs you nothing, and an answer the same day is often worth more than the week you'd otherwise spend googling.
Where you are right now
It doesn't matter how far you've got
Ketryon is built for founders running a company alone or with a couple of others. No procurement process, no project manager in between — you talk to the person writing the code.
You have an idea and no code
You know what it should do, just not where to start. We start with the smallest version you can show someone.
You built a prototype yourself
It works when you demo it. It doesn't work when fifty people sign in at once.
You have paying customers
And now you don't dare touch the code. We make it safe to change again.
You're technical but out of time
You could build it. You just don't have the time, because you're also selling, doing support and keeping the books.
You run the company on Excel and email
Four versions of the same file and nobody knows which one is current. We replace one sheet at a time.
You just need someone to ask
Before you pick a platform, sign a contract or make a hire. One call is often enough.
Free consultation
Asking costs nothing
The first call is always free. Describe what you're trying to build or where you're stuck, and you'll get an honest answer on whether I can help — and what it would cost.
Chat on Telegram- In Slack
- Write whenever it comes to you. You get an answer the same day, in writing, so you can read it again.
- On Meet or Zoom
- Rather talk? We'll book fifteen minutes. You don't need to prepare anything.
- No sales call
- If it's not a fit, I'll say so — and tell you what you should do instead.
What you can send in
Three things I'm asked for every month
You don't need to write a spec. One sentence about what should happen is enough to get started.
“The app I built won't hold up”
The prototype works for you and crashes for your users. We go through permissions, data and hosting — and keep what's already good.
Usually 1–2 weeks“I want a first version live”
One thing that does one thing, out with real users, fast enough that you can still change your mind before the money runs out.
Usually 3–4 weeks
Price
One price. No hours to approve.
You know what it costs before you start, and you still know in month three.
Subscription
SEK 19,900/month
Excluding VAT. No lock-in, no notice period, no setup fee.
Start the subscription
Start the subscriptionVAT is added at checkout. You land in Slack straight afterwards.
What's included
- One active task at a time, unlimited tasks per month
- Web and app — the same person builds both
- Delivery within 48–72 hours for most things
- Everything in your own repo from day one
- Ongoing questions in Slack, without them counting as a task
- Pause or cancel whenever you like
What's not included
- On-site staffing at your office
- Public procurement and tenders
- Round-the-clock support
Stop getting stuck on the tech
No contract, no sales pressure. You talk to the person who builds it.
Chat on WhatsAppFrequently asked questions
What counts as a task?
One thing that should work once it's done. “Sign-in with BankID”, “a landing page I can update myself”, “fix the payment that sometimes fails”. If it's too big we split it up, and you can see the whole queue at all times.
How many tasks can I send in?
As many as you like. I build one at a time, in the order you decide, and you can change that order whenever you want.
How quickly do I get something?
Most tasks are done within 48–72 hours. Bigger things take longer, but you see progress as it happens rather than waiting for one delivery at the end.
I've already built something in Lovable. Can you take it over?
Yes, and it's one of the most common questions I get. You don't have to throw away what you've made. We go through what holds up, what needs redoing before real users arrive, and take it from there.
I don't know anything about tech. Will it still work?
That's the whole point. You never need to understand how it works — only what it does and what it costs. I make the technical decisions and explain them in plain English.
Do I own the code?
Yes, from day one. Everything is written in your own repo, under your account. If you stop subscribing you take all of it with you, and anyone can carry on where I left off.
Can I pause?
Any time. If you have nothing to build right now, you pause and stop paying. The days you have left are kept until you start again.
What don't you do?
I don't work on-site at your office, I don't take part in public procurement and I'm not on call around the clock. If you need any of that I'm the wrong person, and I'll tell you so on the first call.
