Youlearnedit.
HEXImakessureyoukeep it.
Spaced repetition calibrated to your forgetting curve. Not a generic schedule — your personal decay rate, per word, per pattern.
Memory signal
B1 · Upper Intermediate
What HEXI tracks
Collocations
are slipping.
Not your high-frequency words — you see those daily. The word-pairs, the set phrases, the collocations that only appear in specific contexts. Those are slipping. HEXI surfaces them before they're gone.
The workouts
Three modes. One dimension.
01 · Surface → Recall → Confirm
Anchor™
HEXI surfaces what your forgetting curve says you are about to lose — not what you last studied. Spaced repetition built around your actual decay rate, not a generic schedule.
"You don't forget randomly. HEXI knows exactly which words are slipping and when."
02 · Review → Context → Lock
Replay Session
Every word in the context it was first encountered. Not flashcards — sentences, situations, dialects. Memory encodes context, not definitions.
"A word you remember in isolation is a word you'll forget under pressure."
03 · Cluster → Connect → Anchor
Word Bubbles™
Semantic clustering. Words your brain already stores together, trained together. Reduces retrieval load. Compounds Ring 4 with Ring 2 comprehension data.
"Vocabulary isn't a list. It's a network. Train the connections, not the items."
The research
Built on what actually works.
Ebbinghaus (1885)
Forgetting Curve
Memory decays exponentially without review. HEXI calculates your personal decay rate per item, not a universal schedule.
Nation (2001)
Vocabulary Thresholds
Knowing 98% of words in a text predicts comprehension. Ring 4 closes the gap systematically, not randomly.
Baddeley (1992)
Working Memory Model
Retrieval practice strengthens memory more than re-study. Anchor™ forces active recall, not passive recognition.
Under the hood
The technology behind your score.
Personal decay model
HEXI calculates your forgetting curve per item. Your retention rate determines review timing — not a generic SRS.
Semantic clustering
Word Bubbles™ trains vocabulary in semantic networks. Encoding context reduces retrieval load.
Cross-ring signal
Words you cannot hear (Ring 2) or produce (Ring 3) are prioritised in Ring 4. The rings compound.
Dialect vocabulary
Québécois lexical items are not Parisian ones. Your word bank is calibrated to your dialect — including slang.
Ring 4 workouts
The words you earn
should stay earned.
14 days. Your vocabulary. No decay.