Adaptive spaced-repetition study across iPhone, iPad, Mac, Apple Watch, and Vision Pro — with on-device intelligence that emphasizes exactly what you're weakest at.
Flip a card, rate your recall on five levels, and Lexolotl quietly updates each term's score — weighting future sessions toward your weak spots. Forward and reverse recall are tracked separately.
Adaptive weighting
Focus on what you missed.
Drag six weight bars to emphasize exactly the score bins you want to review — with a live preview of what the session will focus on.
Per-direction mastery
Both ways, tracked separately.
A term you know forward isn't the same as knowing it backward. Lexolotl scores each direction on its own.
Streaks & mastery rings
See progress at a glance.
Every deck shows a mastery ring, a score distribution, and your consecutive-day streak.
Everywhere you are
Your decks follow you across every Apple device.
iCloud keeps everything in sync, Handoff lets you resume a drill on another device, and an Apple Watch companion runs sessions on your wrist.
On-device intelligence
AI-enhanced learning in your pocket
Usage examples. For language learning in system-supported languages, Apple Intelligence writes three example sentences, with translations — generated privately, on device.
Text-to-speech. Hear the study-language side spoken aloud — on the card and on every example.
Nothing is sent to a server; progress and scores stay on your device and account.
Bring your own content
Import, use a Starter Deck, or Start from Scratch
Starter decks
Bundled, ready-to-study — languages, scripts, science & more
Import
Question/answer text (any separator) · Lexolotl Basic · JSON
Export
Basic text or JSON — content portable, progress private
Organize
Categories, tags, and scoped drills for any subset
Coming soon
A growing library of free flashcard decks.
Lexolotl comes with 50 starter decks, but an even larger library is being built – advanced decks to download and import with a tap.
