PlexiSafe vs SwiftAuth

Cracked acrylic or polycarbonate panel? PlexiSafe tells you exactly where to drill and what diameter to use to stop the crack from spreading before it is too late. Based on Linear Elastic Fracture Mechanics (LEFM), PlexiSafe calculates the minimum stop-drill hole diameter, evaluates stresses, and gives you an instant verdict: repair safe, warning, or critical. --- WHAT PLEXISAFE CALCULATES --- - Minimum stop-drill hole diameter (d_min) - Stress intensity factor K_I - Critical crack length before fracture - Net stress and stress concentration at the hole - Structural verdict: safe repair, warning, or critical --- HOW TO USE PLEXISAFE --- 1. Enter your plate dimensions: width, thickness, span 2. Enter the crack position and measured deflection 3. Choose your material (Standard PMMA, Reinforced PMMA, or Polycarbonate) 4. Tap Calculate: PlexiSafe shows the drill hole diameter and the verdict --- FEATURES --- - 3 material presets: Standard PMMA, Reinforced PMMA, Polycarbonate - Customizable parameters: allowable stress, fracture toughness K_IC, factor Y - 3 unit systems: mm/MPa, m/MPa, m/kPa - Color-coded verdict (green / orange / red) - Detailed safety margins and inspection recommendation - Full history: name and archive every calculation - Report export (email, AirDrop, print) - 100% offline — no data transmitted, no account required - Available in French, English, Spanish, Portuguese and Chinese --- FORMULA --- K_I = Y x sigma x sqrt(pi x a) Fracture when K_I >= K_IC d_min = 2 x (x + delta) --- PRIVACY --- PlexiSafe collects no personal data. Everything is stored locally on your device. --- DISCLAIMER --- PlexiSafe is a calculation aid tool. Results are indicative and do not replace the advice of a qualified engineer.

Protect your online accounts with SwiftAuth, a secure authentication and password management solution designed to help keep your digital life organized and protected. KEY FEATURES: • TWO-FACTOR AUTHENTICATION (2FA) Add accounts in seconds by scanning a QR code or entering details manually. SwiftAuth generates secure, time-based verification codes (TOTP) that refresh automatically. It works seamlessly with thousands of popular online services and platforms, providing an additional layer of account security. • SECURE PASSWORD MANAGER Save, organize, and securely manage your passwords in an encrypted vault. From banking apps to social media accounts, SwiftAuth helps keep your credentials secure and accessible whenever you need them. • PRIVATE BROWSING Browse with enhanced privacy and reduced tracking. Our built-in browser helps prevent browsing history from being stored within the app and is designed to support a more private browsing experience. • HIGH-SPEED VPN Connect to a fast, reliable, and encrypted VPN service designed to enhance privacy and security. Protect your internet connection and help safeguard sensitive information while using public Wi-Fi and other networks. • HOME SCREEN WIDGETS Access your 2FA codes directly from your home screen for quick and convenient authentication. • DARK & LIGHT MODE Enjoy a beautifully designed experience optimized for both Dark Mode and Light Mode. YOUR SECURITY, YOUR CONTROL SwiftAuth is built with a privacy-first approach for users who value digital security. We are committed to protecting your privacy and handling your data responsibly. Sensitive authentication data is protected using industry-standard security practices. Please refer to our Privacy Policy for more information. Download SwiftAuth today and simplify authentication, password management, and online privacy in one secure app. Privacy Policy: https://sites.google.com/view/pp-authenticator-vpn/home EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/