Software Development Agency vs Freelancer vs In-House

I’ve worked as a freelancer, then as an in-house developer, and now at Zudu, a software development agency in the UK.

Same job title across all three. Completely different reality in each one.

When people talk about building software, the conversation usually goes straight to tech. React or native? Firebase or custom backend?

But in my experience, the bigger decision comes before any of that. Who actually builds it?

Freelancing looked simple. It wasn’t!

Most of my freelance work was not glamorous. It was fixing bugs no one wanted to touch, adding features to systems I did not build, and stepping in when teams were already stretched.

Companies usually brought me in when something did not fit their current setup. Wrong tech stack, not enough bandwidth, or a backlog that had quietly grown out of control. For that kind of work, freelancing is actually a good fit.

But there is another side to it that people do not talk about enough.

You are not just writing code. You are making architectural decisions, managing expectations, translating technical trade-offs into language a non-technical client can act on, and somehow pricing all of that correctly. All on your own.

One thing I did not expect was how hard communication would be. Not because clients were unreasonable, but because explaining the why behind technical decisions takes time, and time is exactly what you are always short of.

I would sometimes know that something needed a proper conversation. Instead of having it, I would just do the extra work and move on. That sounds helpful. It is not. That is how you end up doing more than agreed, charging less than you should, and still feeling like your work is not fully understood.

I did more work than agreed, charged less than I should have, and still felt like the client didn’t fully understand what I had built.

I also worked on a lot of startup prototypes during that period. Most of them never made it live. Not because the ideas were bad, but because the budget ran out before the product reached a state anyone could actually use. That pattern repeated more times than I expected.

Freelancing gives you real freedom. It also makes you responsible for everything, including the things you did not sign up for.

In-house felt calmer. But slower than I expected.

Moving into an in-house role was a significant shift. Suddenly there is a team, there is structure, there are people to think through problems with. That alone makes a real difference to the quality of the work.

I worked on a system rebuild where decisions made years earlier had created compounding problems. That experience taught me more about software architecture than any tutorial or side project ever could. You only really understand the cost of certain trade-offs when you are the one cleaning them up.

But something else became clear quite quickly. Things do not move as fast as you think they will.

Not because people are slow. The problem is structural. A decision that should take a day gets picked up in a meeting on Thursday, goes to a second stakeholder on Monday, comes back with comments the following week, and by the time it is approved the original context has shifted.

A change that should have taken three days had been in review for two and a half weeks. Nothing was blocked intentionally. That was just how the process worked.

There is also often a gap between the people making decisions and the people doing the work. When that gap is small, things move well. When it grows, everything slows down, including things that should be straightforward.

Compared to freelancing it is less chaotic. But if you are used to moving quickly, in-house can feel like pushing through water.

Agency was different from both.

Working in an agency felt different almost immediately, and not just because of the variety of work.

The biggest thing I noticed was momentum. In-house, when something gets blocked, progress stalls while you wait for resolution. In an agency, you move to something else and keep going. That is not just a scheduling difference. It changes how the work feels day to day.

The other thing is the people around you. You are working with developers who have seen different industries, different systems, and genuinely different types of problems. When something unusual comes up, it is rarely completely new to someone on the team. That collective experience changes how quickly you can move and how confidently you can make decisions.

You also do not solve the same problem on a loop. Moving between projects, contexts, and technical challenges keeps your thinking sharp in a way that is hard to replicate when you are deep in one product for years.

The most valuable thing about an agency is not the variety. It is that the variety makes you a better developer.

That breadth of exposure is what an agency developer brings that an in-house hire or a freelancer usually cannot. Not necessarily deeper expertise in one area, but a wider pattern-matching ability that comes from having seen the same category of problem solved five different ways

The part people consistently get wrong.

Across all three environments, one thing kept repeating. People assume software is simpler than it is.

This is not a criticism. It is just a gap between what something looks like from the outside and what it actually involves to build properly.

Booking systems are a good example. A calendar where someone picks a time slot and receives a confirmation email looks like a weekend project. What it actually involves is availability logic that accounts for staff schedules, service durations, buffer time between appointments, overlapping bookings, timezone handling, cancellation rules, and edge cases that only appear once real users start using it. That is before you consider notifications, reschedules, or integrating with anything external.

Integrations are the same. Connecting two systems sounds like it should be a matter of plugging them together. In practice you are dealing with inconsistent data formats, rate limits, authentication flows, error handling, retry logic, and the fact that the third-party API behaves differently in production than it does in the documentation.

The problem is not that these things are impossible. They are not. The problem is that when expectations are set around the surface-level version of the task, the real version always ends up feeling late, over budget, or both. That is not usually a developer problem. It is a scoping problem that starts well before any code is written.

So which one is actually better?

There is no single answer, and that is not a cop-out

A freelancer makes sense when the work is genuinely small and clearly defined. A contained feature, a specific bug, a prototype that does not need to scale. The moment scope starts to shift, the freelance model starts to strain.

In-house works when you are building something long-term, where deep product knowledge matters and continuity is worth the slower pace. If you need someone who will still be there in two years and understands why every decision was made, in-house is the right call.

An agency makes sense when things are complex, when you need a team rather than an individual, or when speed matters and you cannot afford the ramp-up time of a hire. You are paying for experience that already exists, not experience that is being built on your budget.

The mistake is treating them as interchangeable. They are solving different problems.

Final thought.

I have worked in all three, and I still do not think there is a universally right answer.

But I have also seen what happens when the setup does not match the project. Budget runs out before the work is done. Timelines stretch. Frustration builds on both sides. And usually, the person who made the call to hire a freelancer for a complex system, or brought an agency in for something that needed long-term ownership, spends more fixing it than they would have spent doing it right the first time.

The uncomfortable truth is that even people who know all of this still make the wrong call sometimes. Budget pressure, timeline pressure, and the optimism that comes with starting something new all push in the same direction. You tell yourself it will be fine. Sometimes it is. Often it is not.

Most of the time, success is not about finding the best developers. It is about choosing the right way to work.

Getting that right is harder than it looks. But it is also where most of the outcome is determined.