StackCards

Turn any subject into flashcards you'll actually remember. Smart review, daily streaks and gorgeous themes.

A focused flashcards app for studying anything — languages, math, science, code, history. Create a card, add the answer, review it until it sticks. No clutter, no accounts, no subscriptions. Available on iOS and iPadOS.

Made for any subject:

• Basic cards — a question or term and its answer
• Vocabulary cards — a word or phrase and its translation
• Formula cards — a name and its formula, with a math symbols keyboard
• Code cards — concepts with syntax-highlighted snippets in 17+ languages

Smart study:

• A smart review mode that brings back the cards you miss and haven't seen in a while
• Study modes: smart mix, hardest first, least reviewed and shuffle
• Beat-the-clock timed mode
• Swipe to rate, tap to reveal, flip for examples and notes

Stay organized and build a habit:

• Collections, subfolders, color tags and instant search
• Drag & drop to move and reorder; export and import to share or back up
• A daily streak, an optional evening reminder, and an exclusive theme unlocked at 100 days

Private by design — everything stays on your device. StackCards doesn't track you and doesn't collect your data.