Cross-Platform Mobile App Development

I’m planning a new application—working title “Nihtix vipgjseabop”—and I need it built for both Android phones/tablets and iPhones/iPads. I’m flexible on whether you use Flutter, React Native, Kotlin Multiplatform, or another modern framework, as long as the final experience feels fully native on each device family.

Here’s what I’d like from you:
• A single, well-structured codebase that compiles cleanly to APK and IPA files
• Clear instructions (or automated scripts) for building, signing, and publishing the app to Google Play and the App Store
• Source code stored in a Git repository with readable, commented commits

If parts of the UX, branding, or backend need shaping, I’m happy to collaborate; right now the priority is a solid, cross-platform foundation that I can iterate on. Let me know which toolkit you recommend, a rough timeline for an MVP, and examples of previous multi-device apps you’ve shipped.