iOS & iPadOS
Native Swift and SwiftUI. Widgets, live activities, offline-first data, and the kind of motion detail that makes an app feel like it belongs on the device.
We design and build iOS, Android, and web applications for people who would rather ship one thing that works beautifully than five that almost do.
Makers of RANE° — a weather app that shows you the sky and not much else.
01 — How we think
Minimalism is freedom. Reduce a thing to only what is necessary.
That line has driven every product we've shipped. Most apps fail not because they're missing a feature, but because they're carrying twelve nobody asked for. We start by arguing about what to cut.
The result is software that's faster to build, cheaper to maintain, and immediately legible to the person holding the phone. Fewer screens. Fewer taps. Fewer things to go wrong at 2am.
02 — What we build
Native Swift and SwiftUI. Widgets, live activities, offline-first data, and the kind of motion detail that makes an app feel like it belongs on the device.
Kotlin and Jetpack Compose, or a shared cross-platform core when the roadmap calls for one codebase instead of two.
The part users never see and always feel. Auth, sync, subscriptions, notifications, and third-party data pipelines built to stay quiet under load.
Interface, interaction, and identity. We design in the same room we build in, so what gets drawn is what gets shipped.
03 — Selected work
68°
Clear
Our own product
A weather app built entirely around one question: what is it actually doing outside? Temperature is rendered as a living sphere that shifts colour with conditions. There is no menu bar — you swipe down to refresh, swipe up for settings, tap for detail.
04 — How an engagement runs
A working session to find the single thing your product must do, and an honest list of what we're deliberately leaving out of v1.
Every screen, state, and transition — designed as a clickable prototype before a line of production code exists.
You get a running build on your own device every fortnight. No status decks, no surprises at the end.
Submission, review, release. Then analytics, crash triage, and the next cut — because launch day is the middle of the project, not the end.
05 — The studio
Reactorcore is an independent app development studio. We keep the team small enough that the people who scoped your product are the people writing it — no account layer, no handoff to a delivery team you've never met.
We take on a limited number of engagements at a time, which means we say no fairly often. When we say yes, you get the whole studio.
06 — Contact
We read everything and reply within two business days, including to the ones we're not the right studio for.