Cost to Hire an iOS Developer in the UK: Rates Explained
What a UK iOS developer really costs, the difference between a day rate and a finished app, and how to choose the right hiring route.
Short answer
Hiring an iOS developer in the UK costs roughly 400 to 800 pounds a day for a freelancer, or a 55,000 to 95,000 pound salary in-house, with senior and London rates higher. But a day rate is not the real question, because one developer is not a whole app: design, backend, and testing are separate skills. For most founders building a single app, a studio that supplies the full team is more predictable than hiring a lone coder. For the cost of the app itself rather than the person, see our guide on how much it costs to build an app.
What a UK iOS developer actually costs
There are three common ways to pay for iOS development in the UK, and they are priced differently:
- Freelance day rate. Most UK iOS freelancers charge between 400 and 800 pounds a day. Junior and remote-regional developers sit lower; senior specialists and London-based contractors sit at the top, and some niche experts charge more.
- In-house salary. A permanent iOS developer earns roughly 55,000 to 95,000 pounds depending on seniority and location, before employer costs like national insurance, pension, and equipment that add a meaningful margin on top.
- Through a studio. You do not hire the developer directly; you buy the outcome, with the developer, designer, and tester supplied as a team. The day cost is higher than one freelancer but it covers the whole job.
The number that surprises people is not any single rate; it is how quickly a day rate adds up over the weeks a real app takes, and how much is still missing when the coding is done. That is the part the rate alone hides.
Why one developer is not a whole app
The common founder mistake is treating “hire an iOS developer” as the same thing as “get my app built.” It is not. A finished, credible iPhone app is the product of several distinct skills, and a strong iOS developer is only one of them.
- Design. How the app looks, feels, and flows, following Apple’s Human Interface Guidelines. Most developers are not designers, and it shows when they try to be.
- iOS development. Building the app natively, ideally in Swift, so it is fast and feels right. This is the part you are actually hiring for.
- Backend. The server, data, and logic behind the app. A different skill set, and where a lot of the real work often sits.
- Testing and launch. Making sure it works across devices and passes Apple’s App Store Review Guidelines, which reject broken or thin apps.
One exceptional developer can cover several of these for a simple app, but expecting a single hire to design, build a backend, test, and launch a polished product is optimistic. Most good apps are made by a small team, and the founders who forget that end up paying a day rate for a result that still needs a designer and a tester to finish.
Day rate versus finished app
| What you are buying | Typical UK cost | What it does not include |
|---|---|---|
| One freelance developer, day rate | 400 to 800 per day | Design, backend, testing, project management |
| One in-house developer, salary | 55,000 to 95,000 per year | Employer costs, plus the same missing skills |
| A studio team, per project | Higher day cost | Nothing: design, build, test, launch included |
The table makes the real comparison visible. A single developer, freelance or in-house, is cheaper per day but leaves you assembling the rest of the team and managing the gaps between them. A studio costs more per day and supplies the whole team, so the higher rate often buys a lower total cost and a lot less risk for a single app built from scratch.
Freelancer, in-house, or studio: how to choose
The right route depends on what you actually need, not on which has the lowest headline rate.
| Your situation | Best route | Why |
|---|---|---|
| A defined task on an existing app | Freelancer | Flexible, pay for the specific work |
| Ongoing app work for years | In-house hire | A salary is worth it once there is constant work |
| One new app, built well, from scratch | Studio | Whole team, one contract, predictable outcome |
| You can manage a team yourself | Freelancers, assembled | Cheapest if you have the skill and time to run it |
The deciding factor is usually how much app work you have and whether you can manage a team. A freelancer suits a clear, bounded task. An in-house developer earns their salary when the app work never stops. A studio suits the founder who wants one app built properly and one partner accountable for it, without becoming a project manager themselves.
The hidden costs of hiring
The headline rate is only part of what a developer costs, and the extras differ by route.
For freelancers, the main risk is scope. A day rate with no fixed deliverable can run far longer than expected, because there is no agreed end point, only a meter running. A clear brief and a fixed scope protect you far more than negotiating the rate down.
For employees, the salary is the start, not the total. Employer national insurance, pension contributions, equipment, recruitment fees, and the management time to keep someone productive all add up, often to a good deal more than the headline salary alone.
For both, the real hidden cost is the same: a developer without a surrounding team. The gaps they cannot fill, design, testing, backend, do not disappear; they show up as a rough, buggy, or rejected app, and closing them later costs more than doing them right the first time. Hiring the coder is the easy part; getting a finished product is the part the day rate does not price.
What separates a developer worth their rate
The rate tells you what a developer costs, not whether they are worth it, and the gap between the two is where founders lose money. A developer at 800 pounds a day who ships clean, maintainable work is cheaper in the end than one at 400 whose code has to be untangled or rebuilt. So the vetting matters more than the negotiation.
A few things reliably separate a developer worth their rate from a risky hire. The first is shipped work: an iOS developer who has real apps live on the App Store, that you can download and use, has proven they can finish, which is harder than it sounds and where many hires fall down. The second is how they talk about the parts they are not: a good developer is honest that they are not a designer, that the backend is real work, that testing takes time, rather than quietly promising a whole app they cannot deliver alone. The third is how they handle the unglamorous questions, maintenance, edge cases, what happens when iOS updates, because an app is a living product and the developer who thinks past launch day writes code you can build on.
The warning signs are the mirror of those strengths: no shippable portfolio, a rate that seems too good against the UK ranges above, vagueness about anything beyond writing code, and reluctance to be pinned to a scope. A cheap developer who ticks those warning boxes is not a saving, because the cost of their work reappears as the bill to fix or replace it. Judge the person on evidence of finished, maintained apps, and the rate becomes a detail rather than the decision. Ask to see one of their live apps, use it for a few minutes, and notice whether it feels considered or rushed, because that quality is exactly what you are hiring them to reproduce for you.
When hiring a single developer is the right call
Be honest about your situation, because sometimes hiring one developer is exactly right. If you have an existing app and a specific, well-defined job, a fix, a feature, a defined chunk of work, a good freelancer is the flexible, cost-effective choice, and a studio would be overkill. If you are a funded company with a steady stream of app work, an in-house hire earns their salary. In those cases, paying a day rate or a salary for one skilled person is the sensible move.
Where it goes wrong is the founder with an idea and no app yet, hiring a single coder and hoping for a designed, tested, launched product. That is asking one skill to do four jobs. For that founder, what works better is a team that designs and builds under one roof, so the design, the code, the backend, and the launch are one accountable effort rather than a rate you are left to project-manage. That is what we do: we supply the whole team for the price of the outcome, not the hour. See examples in our work and talk through what your app actually needs at a short call.
FAQ
How much does it cost to hire an iOS developer in the UK?
A freelance iOS developer in the UK typically charges 400 to 800 pounds a day, with senior specialists and London rates at the higher end. Hiring in-house costs a salary of roughly 55,000 to 95,000 pounds plus employer costs. The rate depends on seniority, location, and whether they can work alone or need a surrounding team to ship a finished app.
Is one iOS developer enough to build my app?
Rarely for a polished product. A finished app needs design, iOS development, backend work, and testing, which are different skills. One strong developer can build a simple app end to end, but most quality apps come from a small team. Hiring a single coder and expecting a designed, tested, launched product is the most common way founders end up disappointed.
Freelancer, in-house, or a studio: which is cheaper?
It depends on the work. A freelancer is flexible and good for a defined task. In-house makes sense once you have ongoing app work to justify a salary. A studio costs more per day than one freelancer but supplies the whole team, so for a single app from scratch it is often the most predictable total cost, not the cheapest hourly rate.
Why are London iOS developer rates higher?
Because demand and cost of living are higher in London, and many senior specialists cluster there. A London day rate can sit well above the national average for the same seniority. Remote hiring across the UK or working with a studio outside London can lower the rate, though the developer's track record matters more than their postcode.
What hidden costs come with hiring a developer?
For freelancers, the risk is scope: a day rate with no fixed deliverable can run long. For employees, add employer national insurance, pension, equipment, recruitment, and management time on top of salary. For both, the real hidden cost is a developer without a surrounding team, which leaves gaps in design, testing, and backend that show up as a rough, buggy app.