I need an Android application that lets users discover events, reserve their spot, and pay securely—all in one place. The core flow should cover account creation with email + password as the default path, while also allowing a quick sign-in through Facebook for those who prefer it. After logging in, a user must be able to browse available events, select tickets or consultation slots, confirm the booking, and move straight into an escrow-style checkout. Funds stay in escrow until I mark the service as delivered, then the release triggers automatically. For payments, the app has to support both credit/debit cards and PayPal out of the box. You’re free to work with a proven gateway such as Stripe, Braintree, or native PayPal SDKs—as long as the final experience is frictionless and PCI-compliant. I expect modern Android standards: Kotlin (preferred), clean MVVM or MVI architecture, and solid documentation so future iterations are straightforward. A lightweight admin panel or Firebase console access is fine for managing events and reconciling escrow status; just make sure refunds and manual releases are easy. Deliverables • Complete Android Studio project with source code • Working APK for testing on API 24+ devices • Integration keys and clear setup notes for Facebook OAuth, card processing, PayPal, and escrow logic • One brief hand-off session (video or written) walking me through build, deploy, and routine maintenance I’m aiming for a smooth, production-ready first version, so attention to UI polish and secure coding will weigh heavily in acceptance.