Crystal Premium IDE & Compiler

SUBSCRIPTION REQUIRED — SmartIDE Crystal is a premium app, not a free one. Installing is free and you get a 3-day free trial, but after the trial a paid subscription ($5/month or $30/year) is required to keep using the app. Please read the SUBSCRIPTION DETAILS section below before you install.

SmartIDE Crystal turns your Android phone or tablet into a complete Crystal development environment — no desktop required.

Write, run and debug real Crystal code on the go with a fast, modern editor and a genuine Linux terminal, all wrapped in a clean Material 3 interface.

KEY FEATURES
• Powerful code editor with Crystal syntax highlighting, smart indentation, auto-indent and code completion
• Integrated Linux terminal that runs the real Crystal toolchain: the Crystal compiler
• Create, open and manage multiple projects with a built-in file browser
• Built-in Git for cloning, committing and pushing your work
• Step-by-step Crystal tutorials and ready-to-run sample programs so you can learn as you build
• Material 3 design with a full dark mode and a distraction-free layout
• Works completely offline once installed — your code never leaves your device
• Optimised for mobile: light on battery, memory and storage

WHY SMARTIDE CRYSTAL
Crystal gives you Ruby-like syntax with static typing and native-code speed — expressive and fast.

Whether you are learning to code, prototyping an idea on the bus, or keeping your Crystal skills sharp away from your desk, SmartIDE Crystal gives you a professional IDE that fits in your pocket.

SUBSCRIPTION DETAILS
SmartIDE Crystal is a premium, subscription-based app — there is no free tier. Every feature listed above needs an active subscription.
• 3-day free trial for new subscribers, then $5/month or $30/year
• Without an active subscription the app stays locked after the trial ends
• Billed through your Google Play account; renews automatically until you cancel
• Cancel or manage the subscription anytime in Google Play — cancelling during the trial costs you nothing

Questions or feedback? Join the community: https://t.me/crystalsmartide

Recent changes:
• AI coding agents built in: Claude Code, Codex CLI, Antigravity CLI, Kiro CLI, OpenCode, Goose and Crush. Start one on a project from the Projects screen, the Plugins page or the command palette
• The JetBrains editor (Settings › Editor) gains find and replace, code folding, smart Enter, paired brackets, line comments and Markdown editing
• Links in the terminal open even while a program is using the mouse
• Stability fixes, including for Android 8 and 9