System solutions
Stop paying good people to copy and paste. We swap the spreadsheets and duct tape for one system your whole team actually uses.
Custom software, live in weeks. Not quarters.
Kill the spreadsheets, chase-ups and copy-paste. Working software with your team in about 30 days, built by the two people you actually talk to. Don't love the first version? Walk away and owe nothing more.
2,000+ people use apps we've built and run ourselves.We take 3 new clients a quarter. 1 spot left for Q1.
Most dev teams move at the speed of a ticket queue.
Every week you wait is another week your team does it by hand. Here's the difference.
Typical dev teamDuo4Studio
Reply to your email3 to 5 working daysWithin a day
Get a quoteAfter four discovery workshopsWithin a week
See something you can clickNext quarter, maybeWeek two
Fix a bug“Raise a ticket.”Top of our list
Change of planNew contract, new invoice, new timelineQuick call, new plan
Big agency? You're paying for their CEO's next holiday.
As long as the invoices clear, they're happy. Results optional. Here's roughly where £100k goes.
Big agency
Your £100kCEO's next holiday22%
Account managers18%
Office with a slide14%
Meetings about meetings16%
Pitch decks & “strategy”15%
Actually building your thing15%
duo4
Your budgetBuilding your thing100%
No account managers. No office slide. No holiday fund. Two senior builders for less than the cost of hiring one full-time dev.
Your problem. Our problem now.
iOS & Android apps
Your idea, live on the App Store and Google Play. Design, build, launch and support, all handled. You get updates, not excuses.
Web apps
Customer portals and online tools your users don't need training for. Fast, sharp on every screen, built to grow when you do.
Problems in. Solutions out.
While they're booking the kickoff meeting, we're already building.
This is what a normal week looks like at duo4. Small improvements, every single day. You see progress, not promises.
Built with
SwiftKotlinReact NativeNext.jsTypeScriptPostgresSupabaseAWS
updates this week: 23
nownooma: New event: the islandiOS
11mCouplete: Faster card animationsiOS
17mAccident logger: Claims cost dashboardweb
23mnooma: Fixed reminder timezone bugfix
29mInventoryTracker: Supplier shipment trackingweb
35mLogistics: Unit availability viewweb
46mAccident logger: Driver incident historyiOS
The 30-Day System Sprint.
Pick the one process bleeding the most time or money. We fix the price on the call, put a working version in your hands by week two, and have it live with your team in about 30 days.
What you get
One focused system or app, live with your team in about 30 days
A working version to click and test by week two
A direct line to both founders. No account managers, no chasing
You own everything: code, designs and accounts. No lock-in
30 days of free fixes and tweaks after launch
From£5,000
Fixed price, agreed before we start. No hourly meter, no surprise invoices. Spreadsheet into a proper system is usually the quick end.
The guarantee
Don't love the first version? Walk away.
You see a working version by week two. If it's not heading where you want, you stop there and owe nothing more. The risk sits with us, not you.
Book your free callThis isn't for you if…
We'd rather say it now than waste your time.
You enjoy three months of workshops before anyone builds anything
You need a 40-page spec signed off before anything happens
You want to be hands-off and see it in six months
Two founders. One direct line.
No account managers. No hand-offs. No three-week wait for an answer. You talk to the two people building your product, so decisions are quick and nothing gets lost in a hand-off. We've built and run our own apps for 2,000+ people, so we build like owners.
Jack FrancisCo-founder
Simonas KralikasCo-founder
SMEs pay for the work. Corporates pay for the waiting.
Corporates, we love you. It's never the work that holds things up, it's the seven people who need to approve the meeting about it. We'll happily work with you, we just price in the waiting. SMEs skip it, so they skip the bill.
An SMELive in 4 weeks
Free call with the founderMon
“Yeah, let's do it.”Mon
We start buildingWed
Your team is using itWeek 4
A corporateSlow tax applies
Intro call with a managerWeek 1
Supplier onboarding formWeek 4
Procurement, legal, procurement againWeek 9
Meeting to book the kickoff meetingWeek 14
Invoice line: hanging around for sign-offPriced in
We can't help everyone. Let's find out if we can help you.
In 30 minutes you'll know what we'd build, roughly how long it would take and a ballpark cost. Even if you never hire us. Not a fit? We'll tell you straight and point you to someone who is.
30 minute call
FreeTell us what's slowing you down. We'll tell you how we'd fix it and roughly what it takes.
Discovery deep dive
FreeIf we're a fit, we map exactly what we'd build, the timeline and a fixed price. Yours to keep either way.