Every FlashBoss pack is built from two things: a word list and a set of reference lessons. Available here — free to read, free to print, or to use as you like without restriction.
FlashBoss is the structured learning system that combines them: Fibonacci-derived spaced repetition for adaptive study sessions, a choice of master guides and difficulty, boss fights, audio, and a structured, distraction-free learning environment.
Word lists
Every word in every pack, laid out by tier and cluster — target word and translation, nothing in the way. Hide the translations to quiz yourself, or print a cluster and cut your own flashcards.
Open the word directory →Lessons
The reference lessons that fire inside FlashBoss — pronunciation, grammar, usage — rendered exactly as they appear in the terminal. Organised by language and tier, each one unlocking what you're about to read. Tap any line to hear it.
Open the lessons →Reference sheets
One-page references built to print and pin up. More arrive as each pack ships.
Coming soon