Decklio

Decklio is the vocabulary learning app for everyone who loves classic flashcards—but expects a modern, playful experience.

YOUR DECK, YOUR RULES

Create as many decks as you like for any language and topic. Front, back, example sentence—done. Or get started right away with one of the pre-installed dictionaries for English, French, Spanish, Italian, Portuguese, and Japanese.

LEARNING THAT FEELS LIKE A GAME

Tap a card and experience the smooth 3D flip animation. Swipe right for "I knew it"—swipe left for "Repeat." Haptic feedback, animated confetti at the end of a session, and a design that feels like mobile gaming—not homework.

100% OFFLINE. ALWAYS.

No account needed to get started. All decks and cards are stored locally. On a plane, on the subway, abroad without roaming—Decklio always works.

FOCUS MODE: TARGETING WEAKNESSES

Select Focus Mode and Decklio will only show you the cards you're not yet confident in knowing. No more wasting time on vocabulary you already know.