Services - Native iPhone apps, from prototype to the App Store
We write apps in Swift and SwiftUI that behave the way an iPhone expects. Six of the studio’s apps are on the App Store, and each one has a case study with the code and the decisions behind it.
What the work covers
- A native app. SwiftUI for the interface, SwiftData when the data belongs on the device, and Apple Health, the camera, widgets or Apple Intelligence when the product needs them.
- Subscriptions and purchases. A native paywall, subscriptions with a free trial and one-time purchases through the App Store, with RevenueCat keeping track of who has what.
- Shipping to the App Store. Signed builds from Xcode Cloud, TestFlight, the store listing, and the privacy and support pages that App Review asks for, in Portuguese and English.
- After launch. Updates for each new iOS release, fixes and new features, through the monthly format.
Where you can see it
Weightics
A weight tracker with a twelve-algorithm trend engine, widgets and a Premium subscription.
Prandial
A menu reader that uses Apple Health, the camera, the on-device model and Claude, behind a Pro subscription.
Looté
Reads a game screen through the camera, explains each line and turns it into flashcards.
Zenoney
An expense tracker that keeps every number on the device with SwiftData.
Services - How to work with us
There are two formats. The contact form asks which one you want before it asks about budget.
- Monthly. Development, maintenance and support, month after month. It suits a product that keeps changing after launch.
- Fixed project. Development and support for an agreed scope, without ongoing maintenance. It suits a first version with clear edges.
Questions
Does the app need a server?
Often it does not. Weightics, Zenoney and Prandial keep their data on the iPhone with SwiftData. When several people need to see the same data, a backend such as Convex comes in, as in Gol Contra.
Can the app use AI?
Yes, on the device with Apple Intelligence or in the cloud with Claude, as Prandial and Looté do. The page on AI features explains how.
Can the same product be on the web too?
Yes. Gol Contra and Quem Botou Essa? started as web games and now also have iPhone apps, built by the same studio.