/cards: Claude Code Flashcards
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Description
Slash Cards turns the Claude Code slash command catalog into a focused, beautiful study app. Quiz yourself two ways: see a command and pick the right description, or read a description and pick the right /command. Built for developers who live in Claude Code and want to actually remember what /compact, /resume, /security-review, /hooks, and the rest of the catalog do.
WHAT'S INSIDE
40+ documented slash commands, kept current as new Claude Code releases ship
Command → Description quiz mode
Description → Command quiz mode
Mixed mode that alternates both directions
Category filters: built-in, plugin, hooks, MCP, and more
A polished Library to browse the full catalog with search
Per-command detail pages with examples, versions, aliases, and notes
Mastery tracking: answer a command correctly five times to lock it in
Stats: streaks, daily activity, accuracy, and a per-category breakdown
WIDGETS
Card of the Day on your Home Screen (small + medium)
Lock Screen accessory with today's command
Control Center button to jump straight into a quiz round
18 LANGUAGES
Slash Cards is fully localized, and you can pick your language in Settings independently of your device language.
DESIGN
Anthropic-inspired warm coral palette
First-class Light and Dark Mode
Built natively in SwiftUI
MEMBERSHIP
One simple membership unlocks everything: unlimited practice, every study mode, the full searchable Library, Home Screen and Lock Screen widgets, daily streak reminders, and mastery tracking.
Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings.
Privacy: Slash Cards stores quiz progress on-device only. The command catalog refreshes from a public read-only endpoint. No account required.
Slash Cards is an independent study tool and is not affiliated with or endorsed by Anthropic. "Claude" and "Claude Code" are trademarks of their respective owners.
Terms of Service: https://parra.io/terms-of-service.html
Privacy Policy: https://parra.io/privacy-policy.html