Native firstSwiftUI and Jetpack Compose, not a lowest-common-denominator shell
20+ combined yearsNative mobile and full-stack depth on the same senior team
Fixed packagesReview, sprint, or modernization, scoped before build
Packages
Start with the right scope
Start here
App Review + Scope
Timeline: 2–3 business days
For: You have an existing app, a brief, or designs and need an honest scope read and ballpark before committing to a build.
- Written scope summary and recommended engagement
- Effort and timeline estimate for the work
- Technical risks flagged (architecture, store policy, platform deadlines)
Existing apps
Feature Sprint
Timeline: 2–4 weeks
For: You need new capabilities on an existing iOS or Android app, refactoring aging code, or compliance updates as platform requirements change.
- Agreed features implemented in the existing codebase
- Architecture and test coverage kept maintainable where we touch code
- Handoff notes so your team can keep shipping
Existing apps
UI/UX Modernization
Timeline: 2–4 weeks
For: Your app works but feels dated: layouts, accessibility, or interactions need a platform-native refresh without a full rewrite.
- Responsive, accessible layouts aligned with platform guidelines
- Polished interactions (swipe actions, multi-select, sheets, confirmations)
- Handoff notes covering what changed and how to extend it
New iOS or Android
Native App Build
Timeline: 4–8 weeks
For: You need a production iOS (Swift/SwiftUI) or Android (Kotlin/Compose) app built for the stores, not a demo that only runs on a device.
- Store-ready native app in agreed scope with maintainable architecture
- Submission support through App Store or Google Play review
- Handoff documentation so you can maintain and extend the codebase
New apps are SwiftUI on iOS and Jetpack Compose on Android. We also take over existing codebases for features, stabilization, and UI modernization. For a second consumer brand from one Android codebase, see our Android product flavors guide. Deciding native vs shared logic? Read our Kotlin Multiplatform shared logic or UI guide.
Situations
Where this usually starts
- Native iOS and Android for App Store and Google Play — not a device-only demo.
- Existing apps that need features, a UI refresh, or someone to stabilize what another team left.
- Platform deadlines (API levels, privacy manifests, policy changes) where improvising the week before submit is expensive.
Release
Store review and release
App Store and Google Play reviews have grown stricter. Common rejection triggers include missing privacy manifest entries, incomplete account or data deletion flows, and purchase edge cases. Nobody can promise zero rejections; we can promise a methodical response when they happen.
See our Android feature development case study and Android UI / UX case study. AI-built demo stuck before launch? See AI Software Go-Live or the store release checklist.
FAQ
Mobile App Development FAQ
Do you build both iOS and Android apps?
Yes. We build native iOS apps with Swift and SwiftUI, and native Android apps with Kotlin and Jetpack Compose. If shared logic is a better fit, we also help teams evaluate Kotlin Multiplatform.
Can you improve or fix an existing mobile app?
Yes. We take over existing iOS and Android codebases for feature delivery, stabilization, UI modernization, and release readiness. That includes apps originally built by another team.
Can you help if my app was rejected by App Store or Google Play?
Yes. We diagnose rejection causes, implement the required fixes, and help you resubmit with the policy and technical updates each store expects.
Need a mobile estimate?
Thirty minutes. We'll point you to App Review + Scope, Discovery, or a build package.