Syntactic vs Filaire

Syntactic is a complete Rust learning environment that runs entirely on your device — a real Rust compiler in your pocket. WRITE AND RUN REAL RUST Write Rust in a fast editor with syntax highlighting, inline errors, and code completion, then compile and run it on-device. No account, no server round-trip, no internet required — the actual Rust compiler runs on your iPhone and iPad. LEARN FROM THE RUST BOOK The complete Rust Programming Language book is built in, formatted for comfortable reading, with runnable examples one tap from the editor. Check your understanding with built-in quizzes as you go. PRACTICE WITH CHALLENGES Sharpen your skills with 66 hands-on coding challenges across three difficulty tiers. Write your solution, tap Submit, and an on-device test suite grades it instantly — with the failing case and your own debug output right there when you need them. EXPLAIN ERRORS WITH ON-DEVICE AI (OPTIONAL) Stuck on a compiler error? An optional on-device AI can explain it in plain language, grounded in your own code — downloaded only if you choose, and running fully offline. EVERYTHING ON-DEVICE Your code never leaves your device. There is no sign-in and no tracking. Compiling, running, reading, and practicing all work completely offline, anywhere. Syntactic is an independent, unofficial app. It is not affiliated with or endorsed by the Rust Foundation.

Filaire is a native SSH terminal and tmux client for iPad and iPhone. • TMUX, BUILT IN Attach to or create a tmux session when you connect. Switch windows, split and zoom panes from a pull-down control bar, swipe with three fingers to change windows, and use your own prefix key. • SECURE BY DEFAULT Lock hosts behind Face ID or Touch ID. Generate Ed25519 and RSA keys on-device and keep them in the iOS Keychain. Forward your SSH agent to remote servers and approve each signature with Face ID or Touch ID, so private keys never leave your device. • MADE FOR IPAD One window per host, with Split View, Slide Over and Stage Manager. Drag a host out to open it in its own window, and reconnect to recent hosts from Home Screen quick actions. • NETWORKING Jump hosts (ProxyJump), local and SOCKS5 port forwarding, and automatic reconnection when your network changes. • KEYBOARD, TOUCH & TRACKPAD Hardware keyboard shortcuts, a customizable on-screen key bar, mouse support, trackpad scrolling and pinch to zoom. • COMPANION CLI: FIL Install fil on your servers to copy to your device's clipboard, open links, preview files in Quick Look, send notifications and use your forwarded SSH agent. • THEMES Solarized Dark, Solarized Light, Dracula, Nord and Monokai. Filaire is open source.