App development services
Your web or iPhone app, built at a fixed price.
Work directly with Kat to turn your idea into a focused web or iPhone app. We scope a useful first version, agree a fixed quote, and plan the build around your launch needs.
- Web and iPhone build options
- Quote agreed before work starts
- Source code ownership
- Focused 3-week build scope
Best for
You already know who the first users are
You have a clear product idea, not a vague platform dream
You want a fixed price before build starts
You need to launch quickly enough to learn from real customers
Timeline
3 weeks
Project price
Quote on request
Ownership
Your code
Process
Direct with Kat
What you get
A real first version that can take payments and meet customers.
This is for founders past the daydream stage: you know the audience, you know the painful problem, and you need a product people can actually use.
One sharply scoped first version around your core paid use case
Sign-up, login, Stripe or in-app payments where needed
A polished web app, iOS app, or both
Live deployment, domain or App Store handoff, and analytics basics
Your GitHub repository, hosting accounts, and full source code
14 days of post-launch bug fixes after release
Your project, clearly scoped
A clear plan.
A quote for your build.
Every app needs a different first version. Tell me who it is for and what it needs to do. I’ll help shape the scope and send a fixed quote before you commit.
Your quote depends on the platform, core workflows, integrations, and design needs. We agree the deliverables, timeline, payment milestones, and any ongoing service costs in writing.
Free 15-minute call · No obligation
Prefer email? Send me your briefBuild options · Quote on request
Web app
For tools, client portals, booking products, and memberships people can use in a browser.
iPhone app
For a product that belongs on a phone, with TestFlight testing and App Store submission support.
Web + iPhone
For a product that needs both. We agree what each platform needs before committing to the build.
- A written scope and fixed project quote
- Source code and accounts handed over
- 14 days of post-launch bug fixes
FAQ
Questions founders ask before hiring an app developer.
Can a real MVP be built in 3 weeks?
A focused first version can fit a three-week build after kickoff, with prompt feedback and the required accounts ready. App Store review is separate. The goal is not to build every future feature. It is to ship the smallest useful product that lets real users sign up, pay, and use the core workflow.
Do I need a technical co-founder first?
No. You need a clear problem, a defined first audience, and someone technical who can make sensible product decisions with you. You keep the equity and own the code.
What determines my project quote?
The platform, number of workflows, design, and integrations shape the quote. We agree the deliverables, exclusions, running costs, and timeline before work starts. Larger ideas can be split into phases.
Will I be able to hand the app to another developer later?
Yes. You get the repository and setup in your accounts, using common frameworks and services another developer can understand.
Ready to build?
Bring the idea. I will help shape it into a shippable app.
Book a free scoping call and we will decide what belongs in version one, what should wait, and whether the fixed-price build is right for you.