An iOS app to help you complete the 75 Hard challenge: tick off daily tasks and track your progress.
App development
Got an idea for an app? I'll help you from the first prototype to publication in the App Store and Google Play. We start small and test your idea, so you don't have to spend the full budget right away.
From€7,500excl. VATIdeal for: startups and new product ideas
Who it's for
- Start-ups with a new product idea
- Businesses that want to offer their customers their own app
- Founders who want to test whether their idea catches on
- Teams with an existing platform that needs a mobile app
What you get
Prototype to test your idea
Before building the full app, I make a clickable prototype. You can test your idea with real users and learn early what works, without spending the full budget. A prototype is also available on its own, from €1,500.
App for iOS and Android
One app that runs on both iPhone and Android phones, so you reach all your users.
Connection to your backend or API
I connect the app to your existing systems or build a backend for it, so data, accounts and content stay in sync everywhere.
Help publishing to the stores
Publishing to the App Store and Google Play comes with its own rules and reviews. I help with screenshots, copy and submission, so your app goes live without hassle.
Why Oosterom Studio
Prototype first
With a clickable prototype you test your idea with real users before the full app is built. The prototype is also available on its own, from €1,500.
Experience with my own apps
I built and published my own iOS app, Volhoudr. I know the whole process, including Apple's review.
From app to backend
I build not just the app, but also the connection to your systems or a backend, so data stays in sync everywhere.
How we work together
- Step 01IntroWe talk about your idea, goals and budget. No strings attached, in person or online.
- Step 02Proposal & priceYou get a clear plan with a fixed price and timeline. No surprises afterwards.
- Step 03BuildI build in short rounds and show progress along the way, so you can steer.
- Step 04Live & beyondLaunch, handover and, if you like, ongoing maintenance and improvements.
Examples from my work
How much does an app cost?
A clickable prototype starts at €1,500 and a complete app at €7,500, excl. VAT. You get a fixed price up front. The price mainly depends on:
- the number of screens and features
- whether the app needs to run on iOS, Android or both
- whether a backend, accounts or payments are needed
- store fees (Apple Developer and Google Play), which you pay yourself
Frequently asked questions
Why start with a prototype?
A prototype shows how the app works and lets you test it with real users. You learn early what works, before investing in the full app.
Will the app work on iPhone and Android?
It can. We discuss up front whether to start with one platform or build for both right away.
Do you help with publishing to the stores?
Yes. I help with screenshots, copy and submission to the App Store and Google Play, so your app goes live without hassle.
What happens after launch?
Apps need updates, for example for new versions of iOS and Android. That can be covered by maintenance, and we can keep extending the app afterwards.
Curious what it would cost you?
Tell me briefly about your project. You'll get a proposal with a fixed price and timeline, no strings attached.