MOBILE APP DEVELOPMENT
Kumu
Studio

We design and build iOS & Android apps
from first idea to App Store launch

View our apps Start a project
40+
APPS SHIPPED
5 yrs
ON THE STORE
4.8★
AVG APP RATING
01 — SERVICES

What we build

Mobile product development, end to end. No agency layers — senior hands only.

iOS
Native iOS
Swift & SwiftUI apps with the performance and polish the App Store expects.
SwiftSwiftUICoreData
AND
Native Android
Kotlin & Jetpack Compose — smooth, modern apps for the Play Store.
KotlinComposeRoom
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Cross-Platform
One codebase, two stores. React Native and Flutter for faster time-to-launch.
React NativeFlutterExpo
02 — PORTFOLIO

Selected apps

A few of the mobile products we designed, built, and shipped.

iOS
9:41●●●
BALANCE
$ 12,480
FINTECH · iOS
Nomad Wallet
Multi-currency wallet app with instant transfers and biometric auth.
Swift SwiftUI
ANDROID
9:41●●●
TODAY
8,420
HEALTH · ANDROID
Pulse Tracker
Step and heart-rate tracking with AI insights and wearable sync.
Kotlin Compose
iOS · AND
9:41●●●
ORDERS
324
E-COMMERCE · CROSS
Maru Shop
Mobile storefront with live inventory, one-tap checkout, and push offers.
React Native Expo
iOS
9:41●●●
FOCUS
42m
PRODUCTIVITY · iOS
Tidepool
Distraction-free focus timer with analytics and calendar sync.
Swift WidgetKit
03 — ABOUT

A small team,
big craft.

Kumu Studio is an independent mobile-only app-development studio. We partner with founders and product teams to turn early ideas into reliable apps people love to use.

No agency overhead, no endless handoffs — just senior mobile engineers and designers working close to the problem.

01
Mobile only We go deep on iOS and Android. No web, no marketing sites — just apps.
02
Senior only Every line of code is written by engineers with 5+ years shipping to the stores.
03
Own the outcome We measure ourselves by retention, ratings, and revenue — not hours logged.
04 — CONTACT

Let's talk.

Tell us a bit about your app — we reply within one business day.

Ready when
you are.

Whether it's a fresh idea or an app in trouble, drop us a line and let's see if we're a fit.

EMAIL [email protected] LOCATION Remote · Worldwide HOURS Mon — Fri · 9:00 – 19:00