About mk0.net

A focused iOS studio

We build small, useful native iOS apps. Privacy-first by default. Localized to up to 40 languages. 63 apps in the catalog and counting.

What we believe

Most mobile apps want more from you than they give back: ads, accounts, dark patterns, behavioral SDKs. We build the opposite. Every product in our catalog is designed to solve one problem well, store your data on your device or in your iCloud, and disappear when you do not need it.

This is not a manifesto. It is a constraint we apply to every decision: design, architecture, third-party dependencies, monetization. The result is software that is easier to trust, easier to maintain, and easier to live with.

How we work

Native, no shortcuts

Every app is written in Swift and SwiftUI for iPhone and iPad. No cross-platform abstractions, no Web wrappers. The result: apps that respect Apple's Human Interface Guidelines, ship the day a new iOS version launches, and feel right at every scale.

Privacy by default

Apps store data locally by default, with optional iCloud sync through CloudKit when sharing across devices matters. No third-party analytics SDKs ship on user devices. The App Store privacy nutrition label on each release fits on one screen, because there is nothing to disclose.

Built on a shared template

A reusable SwiftUI starter handles onboarding, theming, settings, paywalls, locale, and data export across every project. New apps fork the template, drop in their domain model, and ship a focused v1 in days rather than months. The template gets better as the catalog grows.

Localized from day one

Every app ships in up to 40 languages with per-locale App Store metadata. Roughly half of our installs come from non-English markets, where competition is softer and keyword research pays back faster.

Monetized without friction

Paid apps use StoreKit 2 and RevenueCat for subscriptions, free trials, and revenue analytics. We do not run weekly subscriptions, surprise auto-renewals, or hard paywalls during onboarding. Where it makes sense, lifetime unlocks replace subscriptions entirely.

The numbers

  • 63 apps in the catalog
  • 57 apps live on the App Store
  • 6 apps in active development
  • up to 40 languages per app at launch
  • 100% native Swift & SwiftUI
  • Zero third-party tracking SDKs in production

The stack

The same tools across the catalog, chosen because they fit the way we work:

  • Swift & SwiftUI for every UI
  • SwiftData + CloudKit for persistence and optional sync
  • WidgetKit, ActivityKit, App Intents for surfaces beyond the main app
  • HealthKit, CoreNFC, Vision when the feature requires it
  • RevenueCat for subscription handling
  • ASO and localization baked into every release

Working with us

We take on a small number of custom client projects each year, usually with founders or small teams who want a calm, well-built iOS app rather than a year-long engagement. If that fits your project, write to [email protected] with a short description and we will reply within 24 hours.

Elsewhere