Syntactic vs Oh Pi 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.

Oh Pi App brings your self-hosted AI development workspace to iPhone and iPad. Connect to your own ohpi-gateway directly or through an encrypted SSH tunnel, then work with your files and AI tools wherever you are. • Chat with your configured AI provider and follow streaming responses, reasoning and tool results. • Create, resume, rename and delete conversations across multiple workspaces and servers. • Browse remote files and inspect code, images and tool output. • Schedule tasks and manage their execution from your device. • Configure provider credentials on your server and choose models for each conversation. • Use SSH password or private-key authentication with server fingerprint confirmation. • Enjoy layouts for iPhone and iPad, light and dark appearance, and English and Simplified Chinese. A compatible server and your own AI provider access are required for normal use. You can connect to an existing gateway or install one on a machine you control using SSH. AI requests and tools run on your configured server; provider charges and terms may apply. Before sharing content with an AI provider, the app explains the data being sent and requests your permission. The Oh Pi developer does not operate a conversation relay server. Privacy policy and support: https://yearsyan.github.io/oh-pi-app/