This project centres on building a fully-featured social casino app that runs smoothly on both iOS and Android from a single codebase. The first release will focus on an engaging Slots experience, but the architecture should leave room for additional games later. Core gameplay • Slots engine with authentic reel physics, configurable pay-tables, free-spin bonuses and daily coin drops. Social & progression layer • Personal user profiles, including avatar, coin balance and level progress that persist across devices. • Global and friends-only leaderboards that refresh in near real-time so players can compare wins and bragging rights. • Cloud-saved data to keep every spin, purchase and achievement in sync. Monetisation • Native in-app purchases for coin packs and special offers, wired to the Apple and Google billing APIs with secure receipt validation. • Simple offer management panel so I can schedule discounts without pushing a new build. Admin & analytics • A lightweight backend (Firebase, PlayFab, or similar) to handle authentication, coin economy, leaderboards and basic analytics. If you favour another proven stack, outline why and I’ll consider it. Deliverables 1. Production-ready iOS and Android builds uploaded to TestFlight / Internal Testing. 2. Source code with clear documentation. 3. Deployment guide covering backend setup, store listing assets and necessary certificates. 4. Two-week post-launch support window for critical fixes. Acceptance criteria • App installs and launches on current iOS and Android flagship devices with <5 s cold start. • No crashes after 5,000 automated spins. • All purchases complete successfully in sandbox and live environments. • Leaderboard positions update within 30 seconds of a qualifying win. Timeline is flexible enough for quality polish, yet I’d like a realistic milestone plan before we start. Ready to dive in once we agree on tech stack and schedule.