Cross-Platform CapCut-Style Video Editor

I’m ready to commission a mobile video editing app inspired by the core, non-AI editing experience of CapCut, built to run smoothly on both iOS and Android.

The goal is to give users an intuitive editing workspace for importing, trimming, splitting, arranging and enhancing video clips and photos. Users should also be able to import photos or footage directly from supported social/media accounts where platform APIs permit it—import only, with no direct posting or publishing required.

The app should focus on reliable, user-friendly editing tools rather than AI-powered functionality. AI features such as AI generation, AI effects, automatic editing, AI avatars, AI background removal, or similar AI capabilities are not required.

Core Features

* Video and photo import
* Multi-clip timeline editing
* Trim, split, crop and rotate
* Reorder and merge clips
* Speed control and basic reverse playback
* Transitions between clips
* Filters and basic visual adjustments
* Brightness, contrast, saturation, exposure and other basic adjustments
* Text overlays and basic text styling
* Stickers and simple graphics
* Music/audio import and basic audio editing
* Volume, fade-in and fade-out controls
* Voice-over recording
* Basic sound/effect library support
* Canvas/aspect-ratio presets such as 9:16, 16:9, 1:1, etc.
* Basic zoom, position and transform controls
* Undo/redo
* Draft/project saving
* Video preview with smooth timeline scrubbing
* Export in common resolutions and frame rates
* Social/media account import where technically and legally supported
* No direct social-media posting
* No AI-based features

Technical Requirements

I need the application architected as a production-ready mobile product with clean, modular and well-documented code that can be extended with additional editing features later.

Please recommend the most suitable technology stack—such as Swift/Kotlin, Flutter, React Native, or another approach—and explain why it is the best fit for a video-editing application. In particular, I’d like to understand how you would optimise:

* Real-time video playback and timeline scrubbing
* Video rendering and export performance
* Transitions, filters and effects
* Memory usage with large video files
* Hardware-accelerated encoding/decoding
* Background processing and export
* iOS and Android device compatibility
* Crash prevention and performance monitoring

Deliverables

* Production-ready iOS build suitable for App Store submission
* Production-ready Android build suitable for Google Play submission
* Complete, clean and documented source code
* Project architecture and technical documentation
* Build and deployment instructions
* Basic user guide
* App Store and Google Play submission preparation
* One round of bug-fix support after launch

I’ll provide sample UI references and we can finalise the exact feature list and user flows together once the project starts.

Please let me know your recommended tech stack, proposed architecture, realistic development timeline, estimated milestones, and examples of video-editing or media-focused apps you have previously shipped.