VisuStruct vs SSH Terminal & SFTP

Think in Structures. Understand Algorithms. Write Better Code. VisuStruct makes programming logic visible. Design algorithms visually using Nassi-Shneiderman diagrams, run them step by step with the built-in simulator, and turn your structures into real code — without getting lost in syntax. Whether you are learning programming, teaching computer science, or explaining algorithms, VisuStruct helps you focus on what really matters: understanding how a program works. Visualize. Simulate. Understand. Program. Why VisuStruct? • Build algorithms visually with an intuitive editor • Create Nassi-Shneiderman diagrams quickly and clearly • Execute algorithms step by step — like a visual debugger • See exactly how your algorithm flows • Generate code automatically • Learn programming logic before worrying about syntax • Perfect for students, teachers, and programming beginners From your first algorithm to more complex control structures, VisuStruct bridges the gap between **thinking about a solution and writing code**. Stop guessing what your program does. See it.

Buy it once. Own it forever. No subscription, no account, no tracking. SSH Terminal & SFTP is a real interactive shell and SFTP file manager for iPhone, iPad, and Mac. It connects straight from your device to the machines you already own — no servers in between, and nothing about your session ever leaves your hardware. A REAL TERMINAL, NOT A TOY - Full interactive shell over a genuine PTY: colors, vim, htop, tmux, tab completion - xterm-256color, so your tools look the way they do on your desktop - Live resize — rotate the device and full-screen programs reflow instantly - Hardware keyboards work properly: arrows, Tab, Esc and Ctrl-C go straight to the remote shell - On-screen Esc, Tab, Ctrl and arrow keys — the ones a touch keyboard leaves out - One-tap command suggestions, drawn from what you actually type - Tappable session history — reuse any command without retyping it FILE TRANSFER OVER SFTP (SSH Terminal Pro) - Browse the remote filesystem, starting in your home directory - Download to your device, upload from the Files app - Live progress with one-tap cancel; interrupted downloads clean up after themselves - Runs inside the same connection as your shell — no second login, no second password - Unlocked by SSH Terminal Pro, a one-time $9.99 purchase. No subscription, and everything else in the app stays free. SECURITY, DONE PROPERLY - Password and SSH key authentication — ed25519 and RSA, passphrase-protected keys included - Trust-on-first-use host-key pinning: your server's identity is checked on every single connect, and a key that changes is refused outright - Fingerprints are shown in the exact format ssh-keygen prints, so you can verify them by eye - Saved passwords and keys live in the device Keychain, sealed behind Face ID / Touch ID and unlocked only at the moment you connect — never pre-filled on screen - Optional Face ID / Touch ID lock for the whole app, covering the app-switcher preview too MAKE IT YOURS - Pick the font and the size - Set terminal background and text colors, classic phosphor green and amber included - Everything applies live, mid-session PRIVACY YOU CAN ACTUALLY CHECK No accounts. No sign-up. No analytics, telemetry, crash reporting, ads or third-party tracking. Your host profiles, pinned keys and credentials stay on your device and vanish when you delete the app. We run no servers, so there is nothing for us to collect even if we wanted to. WHO IT'S FOR Developers, sysadmins, and anyone with a Raspberry Pi, a home server, a VPS or a Mac they need to reach from somewhere else. One app. iPhone, iPad and Mac.