Shildar is a cross-platform (iOS and Android) digital protection application built with Flutter. Designed to ensure a safe digital environment, it leverages advanced on-device AI to provide real-time content filtering and monitoring without relying on an active internet connection. The app is paired with a robust Next.js web portal that handles enterprise-grade subscription management.

Key Features & Engineering Highlights

• On-Device AI & Real-Time Filtering: Integrates a powerful NSFW detector model and text-based scanning to instantly block explicit imagery and adult content in real-time. Because the AI model runs directly on the device, the protection is seamless, highly private, and functions completely offline.

• Cross-Platform Flutter Architecture: Engineered a responsive, high-performance mobile application for both iOS and Android ecosystems using a unified Flutter codebase.

• “Netflix-Style” Web-Handoff Monetization: Designed a custom payment architecture to bypass native app store fees. The app generates a cryptographically secure token and seamlessly hands the user off to a Next.js web checkout.

• Automated Subscription Provisioning: Integrated Stripe Checkout with a hidden Next.js webhook. Upon successful payment, the webhook uses the Firebase Admin SDK to instantly upgrade the user’s Firestore profile, unlocking premium features across their devices in real-time.