Spanish is the language most people can get furthest with fastest, and the reason is that it is written the way it is said. Once you know what each letter does, you can read a word you have never seen and be right. iLexiBox starts you at that point — the alphabet and the handful of rules that govern it — and then never runs out of material.
The Spanish on-ramp is written by hand, not generated, and it is 478 cards long. Every card is spoken in a recorded Spanish voice, and what you get right is scheduled for review rather than shown again at random.
Three of the pronunciation cards, exactly as the course teaches them:
Once you are reading, the level is the point. The Text Generator writes Spanish at the CEFR level, length, topic and format you ask for, so the step up is a setting rather than a new book. Speaking scores you word by word as you read aloud. The Conversation Partner talks back. The Translator explains a sentence instead of replacing it, and the Corrector marks what you wrote and says why.
Above the on-ramp sits the Path — a station map from A1 to C2 with grammar, vocabulary and checkpoint stations — and Words & Notes, where everything you save comes back on a spaced-repetition schedule in seven quiz styles.
The album is a photograph for every word, shelved by category, each caption written in Spanish and spoken in a real recorded voice rather than synthesised on the fly. It doubles as a game: see the picture, spell the word. Free to replay.
What is genuinely hard is not the spelling but the verb. Spanish marks person and tense in the ending, so the pronoun disappears and the work moves to a syllable you have to hear. The other early cost is the c and g pair, which each say two different things depending on the vowel behind them, and the z that Spain and Latin America do not agree about. All of that is in the course as its own cards, with a recorded voice on each, because a rule you have only read is a rule you cannot hear coming.