Flashside

CQUELLE GmbH

About this app

Flashside is the flashcard app that remembers for you. Make cards for anything — vocabulary, kanji, anatomy, exam questions — and Flashside's spaced repetition schedules each one at exactly the moment you're about to forget it. A few focused minutes a day beat hours of cramming.

EVERYTHING ON YOUR DEVICE
Your cards, collections and progress live on your phone. Study on a plane, in the subway, off the grid — no account, no connection, no waiting. Sync and sharing are there when you want them, never required.

SMART REVIEWS, ZERO PLANNING
• One "Today" queue collects everything due across all your collections
• Grade each answer — Again, Hard, Good, Easy — and the schedule adapts to you
• Struggling cards get flagged so you can rewrite them instead of grinding them
• Optional gentle reminders so a streak never slips away

CARDS THE WAY YOU THINK
• Rich text with formatting, colors and images on both sides
• Flip direction or shuffle any collection
• Import ready-made decks from CSV or Excel in seconds
• Share whole collections with classmates and friends

EARN IT
Thirty badges are hiding in Flashside — earned for showing up, for flawless sessions, for mastering whole collections, and for a few things you'll have to discover. Levels track your journey from Beginner on up. You'll know a badge when you find one.

MAKE IT YOURS
• Four color themes, each in light and dark
• Clean, fast, distraction-free design
• Available in 20 languages

FREE MEANS FREE
No subscriptions. No coins. No locked features. Flashside is completely free.

Whether you're learning a language, prepping for med school, collecting kanji or just tired of forgetting names — start with one card today. Your future self will thank you at review time.

What’s new

NEW: Folders. Group collections in your library.
NEW: Search across every card, then copy or move a card into another collection.
NEW: Subscript and superscript on the formatting bar (H₂O, x²).
Also: a header that slides away as you scroll, drawings saved without a background so they suit light and dark, pictures shown whole in the editor and card list, readable controls on coloured sides, and the badge shelf no longer takes over the Account tab.