StackCards

ACTIVE

Fast, beautiful flashcards for iOS. 100% offline.

Launched July 17, 2026

About StackCards

StackCards is a beautiful, focused flashcards app for studying any subject—languages, math, science, code, history, and more. Create cards with answers, review them offline, and enjoy a clutter‑free experience with no accounts or subscriptions required.

Pricing

Pricing information isn't available yet.

Capabilities

Basic cards

Create simple question‑and‑answer cards for any topic.

Vocabulary cards

Add words or phrases with their translations for language study.

Formula cards

Store a name and its formula using a built‑in math symbols keyboard.

Code cards

Include syntax‑highlighted code snippets supporting 17+ programming languages.

Smart review mode

Automatically revisits cards you miss or haven’t seen in a while.

Study modes

Choose from smart mix, hardest first, least reviewed, or shuffle to vary practice.

Beat‑the‑clock timed mode

Challenge yourself with a timed review session.

Swipe rating & tap reveal

Swipe to rate knowledge, tap to reveal answers, and flip for examples or notes.

Collections & subfolders

Group cards into collections with nested subfolders for organized study.

Color tags & instant search

Tag cards with colors and instantly search across collections.

Drag‑and‑drop reordering

Easily move and reorder cards via drag‑and‑drop.

Export/import

Export collections for backup or sharing and import them back unlimitedly.

Daily streak & reminder

Track daily study streaks and set optional evening reminders.

Theme customization

Switch between light, dark, or system appearance; choose accent colors, animated backgrounds, and card styles.

Progress tracking

View stats for mastered, learning, and new cards.

Offline private storage

All data stays on the device; no tracking or data collection.

Premium unlock

One‑time payment unlocks unlimited collections, nested folders, all themes, image support, and unlimited imports.

Use Cases

Language vocabulary memorization
Create vocabulary cards with translations and review them using smart study modes to retain new words efficiently.
For: Language learners
Programming syntax review
Build code cards with syntax‑highlighted snippets and practice through timed and hardest‑first modes to reinforce coding skills.
For: Developers and computer science students
Math formula practice
Store formulas in formula cards and use smart review to repeatedly test and remember essential equations.
For: Math students and educators
Professional certification preparation
Organize study material into collections, track progress, and maintain daily streaks to stay on schedule for exam readiness.
For: Professionals pursuing certifications
Daily habit building for general knowledge
Use the daily streak feature and optional reminders to study any subject regularly, fostering continuous learning.
For: Lifelong learners