I will build an android and ios app prototype with kotlin multiplatform


Level 1
About this gig
Need a small working app to demonstrate an idea on Android and iOS?
I build scoped prototypes with Kotlin Multiplatform and Compose Multiplatform, sharing the agreed interface and logic across both targets.
Basic includes up to five shared screens and simple interactions with local or sample data. Standard includes up to ten shared screens and navigation. Premium includes up to sixteen shared screens and one agreed local-data workflow.
You receive the source project, Android test build, iOS simulator build and build instructions. I check both targets. Installing on a physical iPhone or using TestFlight requires your Apple developer setup and separately agreed signing work.
My work includes commercial Android/iOS engineering for ZURIGA through Milk Interactive and independent multiplatform apps.
Send your screens and expected behaviour before ordering. This is a prototype, not a complete production service. Backend development, login, payments, external APIs and store submission are excluded. One revision round is included. I use Codex and review and test the result myself.
Get to know James Cullimore
Android iOS and Web Developer
Level 1
- FromGermany
- Member sinceApr 2023
- Avg. response time2 hours
- Last delivery1 month
Languages
English, German
My Portfolio
FAQ
Are both platforms included?
Yes. The agreed shared screens are checked on Android and an iOS simulator. You receive the source project and build instructions.
Can I install it on my iPhone immediately?
The standard iOS deliverable is a simulator build. Physical-device installation or TestFlight needs your Apple developer setup and separately agreed signing work.
Is this a finished production app?
No. It is a working prototype with the specified scope. Production hardening, backend services and store release are separate.
Do I get the source code?
Yes. Third-party components retain their own licences.
What is a revision?
An adjustment within the agreed screens and workflow, not another feature.

