Cross-Platform Flashcard App

I need a developer who can take my idea for a flashcard-based productivity tool and turn it into a polished application that runs smoothly on Windows laptops, Android phones/tablets, and iOS devices. The app’s learning engine must rely on active recall and spaced-repetition algorithms to help users retain information efficiently.

Core experience I’m after
• Create, edit, and organise decks and individual cards (text first; images and audio later as a plus).
• Automated scheduling of reviews driven by spaced-repetition logic.
• Quick-review mode for on-the-go study sessions.
• Real-time progress tracking with simple statistics.

Cross-platform requirements
The same account and data should sync seamlessly between Windows, Android, and iOS without the user feeling any friction. I’m open to the framework you prefer—Flutter, React Native, Kotlin Multiplatform, Electron with a mobile wrapper, or another approach—as long as you can guarantee a consistent look, smooth performance, and straightforward maintenance.

Deliverables
• Production-ready builds for Windows (.exe or installer), Android (AAB/APK), and iOS (App Store package).
• Source code in a private repository with clear commit history.
• Brief setup and maintenance documentation showing how to build, deploy, and update the spaced-repetition algorithm parameters.

Acceptance criteria
The review schedule must adjust automatically based on user feedback (e.g., “easy,” “hard,” “again”), and I’ll test that the same card scheduling state appears identically across all three platforms after syncing.

If this excites you and you have prior experience shipping multi-platform apps—especially educational or productivity tools—let’s talk about timelines and the tech stack that fits best.