How to Hire Flutter Developers: In-House vs Freelance vs Agency
Comparing the ways to hire Flutter developers in the UK: in-house, freelancers, agencies and offshore teams. Real costs, risks, and the questions to ask before you sign.
Flutter has become one of the most popular ways to build iOS and Android apps from a single codebase (see our Flutter vs React Native comparison). But finding the right people to build your app is often harder than choosing the technology. Here are your options, with indicative UK costs and the risks of each.
Option 1: Hire in-house
Best when the app is your business and you need a permanent team.
- Indicative salary: roughly £45,000–£80,000 for mid-to-senior Flutter developers, more in London.
- Hidden costs: employer National Insurance (15% above the threshold since April 2025), pension contributions, equipment, software, recruitment fees (often 15–25% of salary) and management time.
- Risk: one developer can't cover design, back end, testing and DevOps. You'll likely need several hires before launch.
Option 2: Freelancers
Best for small, clearly defined tasks: a new feature, a bug fix, a UI update.
- Indicative rate: £350–£650 a day in the UK; lower on international platforms.
- Pros: flexible, quick to start.
- Risks: availability, single point of failure, and you become the project manager connecting designers, developers and testers.
Option 3: UK agency
Best for complete products with a budget to match.
- Indicative rate: £450–£1,200+ per day depending on location and seniority.
- Pros: a full team, a defined process and one accountable partner.
- Cons: the highest cost of all options.
Option 4: UK-registered company with offshore delivery
Best for startups and SMEs who want agency quality on a tighter budget.
- Indicative rate: often £150–£400 per day.
- Pros: a complete team at lower cost, with a UK contract, UK law and a UK point of contact.
- What to check: communication, overlapping working hours, references and real case studies.
Side-by-side comparison
| In-house | Freelancer | UK agency | UK company, offshore team | |
|---|---|---|---|---|
| Cost | High (fixed) | Medium | Highest | Lower |
| Speed to start | Slow (months) | Fast | Fast | Fast |
| Full team | Only if you hire it | No | Yes | Yes |
| Accountability | You manage | You manage | Agency | Company |
| Best for | Long-term core product | Small tasks | Big budgets | Full products on a budget |
All figures are indicative market ranges and vary by seniority and scope.
10 questions to ask before you hire
- Can I see Flutter apps you've shipped to the App Store and Google Play?
- Can I speak to a past client?
- Who will actually work on my project, and how senior are they?
- Do you also build the back end and admin panel?
- How do you test, and on which devices?
- How often will I see progress? (Look for regular demos.)
- Will you sign an NDA before we discuss details?
- Who owns the source code and IP? (It should be you.)
- What happens after launch? What does support cost?
- Which legal entity am I contracting with, and in which country?
Red flags
- A fixed price before they understand your requirements.
- No live apps you can download and try.
- Reluctance to put IP ownership in writing.
- No process for demos, testing or handover.
Looking for a Flutter team?
NestedPie Technologies is registered in England and Wales with an experienced Flutter team. We've shipped products like Go2Cars and LetMenu, sign NDAs before we talk, and you own 100% of the IP. Get a free consultation.
Frequently asked questions
How much does a Flutter developer cost in the UK?
Indicatively, permanent mid-to-senior Flutter developers in the UK earn roughly £45,000–£80,000 a year before employer costs. Freelancers commonly charge £350–£650 a day. Offshore teams through a UK company are usually considerably lower.
Should I hire a freelancer or an agency?
Use a freelancer for small, clearly defined tasks. Use an agency when you need a complete product, because you'll need design, mobile, back end, testing and project management together.
How do I protect my IP when outsourcing?
Sign an NDA before sharing details, and make sure the contract assigns all intellectual property and source code to you. Contracting with a UK-registered company gives you UK legal protection.
