Custom Business Software.
Free Prototype in 5 Days.

We replace spreadsheets, manual processes & disconnected tools with custom software designed for your business.

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Swim England
Lenovo
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Client logo
Swim England
Lenovo
Client logo
Client logo
Client logo
Client logo
Client logo
Client logo
Client logo
Swim England
Lenovo
Client logo
Client logo
Client logo
Client logo
Client logo
Client logo
Client logo
Swim England
Lenovo
0+
Products built
0 weeks
Average time to launch
0+
Avg hours saved / week
0/10
Clients return for follow-on work

Our bragging rights.

Custom software and internal tools that we built recently.

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How We Work

Exceptional software in weeks.

No surprises.

01

Discovery

Free
1 hour

A one-hour scoping call where we map how your operation works and shape it into a polished plan — no cost, no commitment.

02

Prototyping

Free
5 days

We'll build a clickable prototype so you can see exactly how your software will look and feel, before beginning development.

03

Build

3 weeks

We'll take the app from zero to launch, with everything handled for you. You'll get daily updates.

04

Launch

As soon as you're ready

We'll be on standby with rapid support, included in our complimentary 30-day launch support package.

James O'Sullivan

Meet the Founder

James O'Sullivan

I started this because I kept seeing the same thing — great teams held back by software that didn't fit how they actually work, and agencies that charged a fortune and took forever to deliver.

So we started building custom software for operations-heavy teams — pairing senior product and engineering talent with AI to replace the spreadsheets and disconnected tools, and build systems around exactly how your business works. In weeks, not months — and far leaner than hiring.

50+ products shipped. 15 years in product & engineering. From idea to working software in weeks, not months.

What Clients Say

They built it with us.

Alex testimonial

We were drowning in spreadsheets and half-connected tools. Userflo built us one system that actually fits how we operate — we've grown output without growing headcount.

Alex
CEO
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Jeff testimonial

They built custom software around exactly how our business runs — not some off-the-shelf template. The manual work that used to eat our week just disappeared.

Jeff
Founder
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Liam testimonial

We'd outgrown our spreadsheets but weren't ready to hire a whole ops team. Userflo gave us software that does the heavy lifting — and we saw it working within weeks.

Liam
Co-Founder
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Jordan testimonial

Instead of hiring three more people to keep up, we automated the operational grind. The custom tools Userflo built paid for themselves almost immediately.

Jordan
Founder
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Ken testimonial

Every disconnected tool and workaround got replaced by one system built around us. It's the difference between constantly firefighting and actually running the business.

Ken
Founder
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See it before we build it.

Tell us what you want to build. In 5 days we'll send you a free, working prototype — no commitment.

Prototype preview