Share the logic, keep the native interface
Kotlin Multiplatform for teams that want shared business rules without giving up SwiftUI and Compose on the surface.
- Kotlin
- KMP
- Ktor
- SQLDelight
Kotlin & Kotlin Multiplatform
KMP is the pragmatic middle ground: networking, models, validation and offline logic written once, while each platform keeps its own native UI layer and its own feel.
We usually introduce it into an existing pair of apps one module at a time, starting with the networking layer, so nobody has to bet the roadmap on it.
~60%
Logic shared in a typical KMP setup
100%
Native UI retained on both platforms
1 module
Smallest safe way to start
What is actually included
Scope is agreed line by line in the framing week. This is the menu it gets drawn from.
- Kotlin Multiplatform architecture
- Shared networking and persistence modules
- Compose Multiplatform where it fits
- Incremental adoption in existing apps
- Ktor and SQLDelight setup
- Native interop for Swift consumers
- Shared test suites
- Build and publishing pipelines
Typical stack
Four steps, and you can stop after any of them
Every stage produces something you own outright. Nothing is held hostage to the next invoice.
- 01
Framing week
A paid week where we map the constraints, the existing systems and what success has to look like in numbers. You keep the output whether or not we continue.
- 02
Architecture & plan
A written technical plan with the trade-offs made explicit, a milestone schedule, and a fixed budget band for the first release.
- 03
Build in the open
Two-week increments, a preview URL from day three, and a Slack channel where your team can see the work rather than wait for a demo.
- 04
Launch & operate
Load testing, runbooks and monitoring before go-live, then a support window while your team takes the wheel — or a retainer if you would rather we kept it.
Usually paired with
Projects rarely stay inside one service line. These are the ones that most often come along with it.
Mobile Application Development
Native and cross-platform product work, from concept validation through store release and the release train that follows.
Read moreiOS App Development
Swift and SwiftUI engineering with the platform details — widgets, App Intents, Live Activities — treated as features rather than extras.
Read moreAndroid App Development
Modern Android engineering that accounts for the devices your users actually own, not the flagship on the designer's desk.
Read moreReact Native Development
New Architecture React Native builds with native modules where they are needed and over-the-air updates where they help.
Read moreFlutter Development
Dart and Flutter builds across mobile, web and desktop, with a custom design system rather than default Material everywhere.
Read moreWhat clients say when we are not in the room
These are lightly edited excerpts from reference calls, published with permission.
Kotlin & Kotlin Multiplatform: the questions we get asked
If yours is not covered, ask it directly — the reply comes from whoever would lead the work.
With a paid framing week. Two of our people read the existing code, talk to whoever operates the system daily, and produce a written technical plan covering approach, trade-offs, milestones and a budget band. You keep that plan regardless of what happens next.
The people you meet in the framing week. Clownmind runs senior-only delivery teams of three to five, and we do not hand projects to a second bench after the pitch. Kotlin, KMP, Ktor and the rest of the stack listed above are things our team uses daily, not things we subcontract.
Most first releases land between eight and sixteen weeks depending on integration surface. We ship in two-week increments with a preview environment from day three, so there is something real to look at long before launch.
Load testing, runbooks and monitoring go in before go-live. After that you either take it in-house with a documented handover — which is what we design for — or keep us on a retainer for operations and continued delivery.
Yes, from the first commit. Work happens in your repository, under your organisation, on your cloud accounts. There is no proprietary Clownmind framework you have to keep paying to license.
Ready to talk about Kotlin & Kotlin Multiplatform?
Thirty minutes, no deck, and a straight answer about whether we are the right studio for it.