Applications & Systems Hub
Explore enterprise Python data architectures, web crawlers, published production applications on Apple App Store & Google Play, in-development beta systems, and official legal policies by Dylan Calin.
⚡ Enterprise Systems & Python Data Pipelines
Enterprise Data Pipeline Suite
High-throughput enterprise Python data processing and automated ingestion engine (PyQt6 desktop interface & FastAPI/Uvicorn web backend). Developed for institutional operations to eliminate manual searches, parse operational communications, and deliver automated executive reporting.
Freelance Cloud ETL & Web Crawlers
Commercial web crawlers and automated data extraction pipelines designed with Playwright, Selenium, and Requests (session pooling, persistent browser profiles to bypass anti-scraping protections). Automated ETL pipelines transforming scraped datasets and uploading directly to cloud databases and CRMs via Airtable REST API and Google Sheets API. Scheduled recurring tasks deployed on PythonAnywhere and Linux cloud servers.
Institutional Canteen Logistics System
Integrated meal logistics, portion reservation, and inventory allocation mobile and backend solution engineered specifically for institutional staff canteen management. Published on both Apple App Store and Google Play with active institutional users.
🟢 Published Production Applications (Google Play & Apple App Store)
GriLEX • Grile Admitere MAI & TCO
The leading full-featured examination preparation platform for Romanian Police, Gendarmerie & MAI candidates. Includes official past subjects, AI Legal Explanations, offline SQLite question banks, Supabase synchronization, and RevenueCat subscription monetization. Live on both Apple App Store and Google Play.
Sensor Toolkit – Smart Tools
Published hardware diagnostics and sensor telemetry suite on both Apple App Store and Google Play. Integrates native hardware sensor APIs to deliver essential precision utilities: magnetic compass, sound decibel meter, lux light meter, accelerometer telemetry, and flashlight tools with RevenueCat subscriptions.
Flip Rush – Impossible Game
Fluid 60 FPS mobile arcade tap reaction game built with Flutter and Flame Engine, published on both Apple App Store and Google Play. Features low-latency touch loops, local high-score persistence, and dynamic procedural obstacle generation.
Minesweeper The Original • Pure Logic
Classic Minesweeper reimagined with a deterministic deductive SAT solver ensuring 100% solvable, guess-free puzzles. Features nostalgic Windows 95/98 & Dark themes, daily calendar challenges, custom board generators, 3BV telemetry, and Google Mobile Ads monetization.
🟡 Pre-Release, Beta & In-Development Systems
Obscura • Offline Encrypted Messenger & Key Vault
Zero-cloud, offline end-to-end encrypted messaging and cryptographic key vault for iOS and Android. Zero remote servers, zero account registrations, and zero metadata leakage. Features peer-to-peer Curve25519 ECDH key negotiation, authenticated AES-256-GCM cipher payload encryption, steganographic cloaking (disguise payloads as casual text or emoji streams), instant clipboard auto-decryption, Apple Secure Enclave & Android Keystore biometric protection, and RevenueCat subscription tiers.
Permis Armă • Pregătire Examen SAESP
Specialized examination preparation platform for the theoretical weapons certification exam (Legea nr. 295/2004 privind regimul armelor și al munițiilor). Features 40 official test variants (800 unique multiple-choice questions), 16/20 pass-threshold exam simulations, a step-by-step IPJ dossier checklist, legal cheat-sheets, error bank tracking, and RevenueCat subscription monetization.
Permis Vânătoare • Examen Vânătoare AGVPS
Comprehensive examination preparation platform for the theoretical hunting permit examination in Romania (Legea nr. 407/2006 a vânătorii). Features 40 test variants (1200 unique multiple-choice questions: 20 official AGVPS + 20 advanced training), 21/30 pass-threshold exam simulations, a step-by-step AGVPS dossier checklist, and offline-first storage.
TILT: The Equilibrium Puzzler
Physics-based equilibrium puzzle game built with Flame & Forge2D. Balance physical beams, solve gravity puzzles with locked layouts, survive the rising deluge, and create custom physics levels with the in-game creator.
BailOut: Stealth Escape Call
Discreet social exit utility designed to simulate hyper-realistic incoming and active phone calls across iOS and Android. Features native CallKit UI, touch-free stealth triggers (pocket proximity sensor, shake gesture, stealth widget), disguise calculator mode, and AI voice alibi synthesizer with teleprompter.
AegisVault
Offline-first encrypted mobile storage vault incorporating hardware keystore encryption, biometric authentication (FaceID/Fingerprint), and AES-256 cryptographic algorithms.
MenuVerse Platform
B2B restaurant catalog and order management platform with QR code generation, Supabase cloud sync, CSV item importing, and dynamic PDF menu generation.
Underwater Camera
Touch-free marine action camera utility using accelerometer gesture triggers and compass heading sensors for seamless hands-free recording while swimming or diving.
Nautix AI
AI-driven nautical weather forecasting and coastal navigation assistant integrating Google Gemini AI and interactive map overlays.
🎮 Flame Games Arcade Lab (14+ Mobile Games)
2D Mobile Games Portfolio
Designed and programmed with Flutter and Flame Engine: TILT, Flip Rush, Scrap Riders, Kinetic Catapult, Warriors Evolution, Bubble Battle, Imposter Who, Mafia Party, and more.
Developer Legal Policies & Store Profiles
Official developer profiles, store disclosures, and GDPR compliance policies: