Mobile app development
Mobile apps that ship fast and stay reliable on real devices
We build iOS and Android apps in Swift, Kotlin, Flutter and React Native, and support them after launch.
A mobile app is more than its screens. Speed on real devices, store readiness and the reasons people come back matter as much.
We pick the stack that fits your product and team, build for iOS and Android, prepare the store releases, and keep improving the app from real usage.
What we build for mobile
Four parts of every mobile project we take on.
Native and cross-platform apps
Swift and Kotlin where native matters, Flutter or React Native for one codebase on iOS and Android.
Performance on real devices
Performance budgets, profiling and offline-aware flows, so the app stays quick on mid-range phones.
Store release readiness
Permissions, privacy labels and store assets checked before submission, so App Store and Google Play reviews go smoothly.
Migration of existing apps
Separate iOS and Android codebases brought into one React Native or Flutter project without disrupting live users.
The stack we build mobile apps with
- Android
- iOS
- Swift
- Kotlin
- Flutter
- React Native
Six steps take a product from first call to launch. The team that starts it stays to support it.
Discovery
Your goals, users and constraints, turned into a roadmap.
Design
Interfaces and flows built on research and your brand.
Build
Sprints with working software to try every week.
QA
Manual and automated tests before every release.
Launch
CI/CD pipelines and cloud setup for repeatable releases.
Support
Monitoring, fixes and improvements after launch.
01
One team from first call to support
The people who scope your product also design, build and support it.
02
Working software every week
Weekly demos and reviews let you see progress and change course early.
03
Direct access to engineers
You talk to the engineers building your product, and one project manager keeps the plan.
Products we built
Neptune EHS and SayThread are products CodeSwift built. Each links to its own site.
EHS software for safety and compliance teams, a product CodeSwift built.
- Incidents
- CAPA
- Lockout/Tagout
- HazCom
SayThread
A voice ecosystem across your Android phone and your Windows or Linux computer, built by CodeSwift. In beta.
- 27 languages
- Untangle
- Rewrite by voice
- Meeting recaps
“Great products start with a clear direction and a team that can execute.”

Why work with us
The right stack for your product
We choose native or cross-platform for your performance needs, team and timeline, not from a template.
Working builds early
You test real builds on your own phone early in the project, not only mockups.
Native feel where it counts
We bridge to native modules for the camera, biometrics and payments wherever the experience depends on it.
Decisions from real usage
Analytics and feature flags are wired in from the start, so the roadmap follows how people use the app.
FAQ
Which platforms do you build for?
iOS and Android. A cross-platform framework gives you both from one codebase; where an app needs it, we build natively in Swift or Kotlin.
Can you migrate our existing native apps?
Yes. We bring separate iOS and Android codebases into one React Native or Flutter project without disrupting your live users or losing features.
How long does it take to build a mobile app?
It depends on the scope. We work in short iterations, so you can tap through working builds on your own device early in the project.
Startyour projectwith CodeSwift
Tell us what you want to build and we'll plan the first steps with you.
Get in touchPrefer email? Write to our teams in Rawalpindi and Salt Lake City.
connect@codeswift.org