Khyra vs Syntactic

Khyra is a modern development environment for iPhone and iPad that lets you write, learn, organize, and improve code directly on your mobile device. The powerful code editor supports multiple programming languages and includes syntax highlighting, intelligent suggestions, automatic indentation, code formatting, error detection, and convenient Quick Fixes. Frequently used symbols and language-specific tools are always available through an optimized keyboard toolbar. With the integrated AI assistant, you can generate new code or explain, improve, and repair selected sections. Khyra uses Apple Foundation Models directly on supported devices, providing intelligent assistance within your project. Organize projects, files, and custom code snippets, start with ready-to-use templates for Swift, SwiftUI, SwiftData, and other technologies, or explore APIs and frameworks through the integrated documentation. Local version management preserves important editing states. You can compare old and new code, review changes clearly, and restore previous versions. Khyra is designed specifically for coding on mobile devices: • Custom code keyboard toolbar • Find and Replace • Quick navigation to specific lines • Duplicate, delete, and move lines • Comment and indentation tools • Distraction-free Focus Mode • Pinch gesture for changing the editor font size • External keyboard support • Customizable editor layout • A wide selection of light, dark, and colorful themes • HTML preview and integrated playground • Modern and compact developer documentation Whether you are learning to code, testing an idea while away from your desk, or building your own project, Khyra combines an editor, documentation, templates, version comparison, and intelligent coding assistance in one app.

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.