CHMOD Lab vs Authenticator Pro

Stop guessing Linux file permissions. CHMOD Lab is the ultimate interactive sandbox and calculator for developers, SysAdmins, and students who want to master the command line. Whether you are configuring a web server, debugging a script, or studying for your Linux certification, CHMOD Lab bridges the gap between confusing octal numbers (755) and symbolic notation (rwxr-xr-x). FEATURES: • Interactive Calculator: Toggle permissions instantly. Tap "Read," "Write," or "Execute" and watch the Octal and Symbolic codes update in real-time. • Reverse Lookup: Type in a code like "644" and see exactly which permissions are granted. • Visual Sandbox: See permissions visualized to understand "who" can do "what" before you run the command. • Cheat Sheet: Built-in reference guides for common permission patterns. Master the command line. Download CHMOD Lab today.

Authenticator Pro is a secure, all-in-one 2FA authenticator and password manager. Generate two-factor (TOTP/HOTP) codes, store passwords and secure notes, and now create passkeys — all in a single end-to-end encrypted vault that works fully offline. Trusted, private, and built for Apple: • 2FA AUTHENTICATOR — Add accounts by scanning a QR code or importing from Google Authenticator, 2FAS, Aegis and Authy exports. Supports TOTP, HOTP and Steam Guard. • PASSKEYS — Create and sign in with passkeys for passwordless login, right from AutoFill in Safari and apps. • PASSWORD MANAGER — Save logins, generate strong passwords, and auto-fill them across iOS and macOS. • SECURE NOTES & BACKUP CODES — Keep recovery codes and sensitive notes encrypted next to your 2FA. • WIDGETS, WATCH & LIVE ACTIVITY — Read codes from your Home Screen, Lock Screen, Apple Watch and Dynamic Island. • ZERO-KNOWLEDGE SYNC — Optional multi-device sync via iCloud, Google Drive, WebDAV or our private server. We can never read your data. • ADVANCED SECURITY — Decoy vault, Travel Mode, location lock, dark-web breach monitor and a live security score. • PRIVATE BY DESIGN — No ads, no tracking. Your vault is AES-256 encrypted with 600,000-round key hardening. Available in 35 languages. Face ID / Touch ID unlock. Premium unlocks the password manager, advanced security and multi-device sync. 2FA codes are always free and unlimited.