/cards for Claude Code

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 (Pro)
• 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, the version each was added in, aliases, and notes
• Mastery tracking — answer correctly five times to lock a command in
• Stats dashboard: streaks, daily activity, accuracy, mastery progress, 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

DESIGN
• Anthropic-inspired warm coral palette
• First-class Light and Dark Mode
• Tinted icon for iOS 18
• Built natively in SwiftUI

PRO
Slash Cards is free to use with a 10-question daily limit. Slash Cards Pro unlocks unlimited practice, all study modes, Home Screen and Lock Screen widgets, daily streak reminders, and category decks.

• Pro Lifetime — one-time purchase, yours forever
• Pro Annual — auto-renewing yearly subscription

Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Payment is charged to your Apple ID at confirmation of purchase.

Privacy: Slash Cards stores quiz progress on-device only. The command catalog refreshes from a public read-only endpoint. No account required.

Built by a developer who uses Claude Code every day. 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.

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Privacy Policy: https://parra.io/privacy-policy.html