Learn a language through poems — read, listen, reveal the translation line by line, and let spaced repetition make it stick. Seven languages, 186,000+ public-domain poems. Free to read & learn, no accounts.
Language apps drill sentences. Poems are why you stay.
Versos teaches through public-domain poetry — Spanish, English, French, Italian, German, Portuguese and Chinese: read the poem, hear it read aloud, reveal the translation line by line, then let an SM-2 spaced-repetition engine bring the lines back until they stick. There are no accounts and no backend for your progress — everything you learn stays in your browser, and the whole thing works offline as a PWA.
DSL4 Digital engineers the corpus, speech generation and rights-gated content pipeline. Viva Grafix’s role was to understand how those systems behave and turn them into a calm learning experience where reading, listening and recall feel like one coherent rhythm.
Three loops, one quiet interface: the poem, the voice, and the review queue.
Poems open in the original language; translations reveal one line at a time, so the reader works before the answer arrives.
Every poem is voiced with custom neural TTS Castilian voices — built without cloning any human speaker.
An SM-2 spaced-repetition engine schedules reviews locally — progress is private by design because it never leaves the device.
DSL4 Digital engineered the pipeline. Designing around its rights, generation and delivery constraints was how we made the pages feel simple.
A rights-gated content pipeline enforces Spain’s life-plus-80 public-domain rule as an automated test guard — a poem that isn’t provably out of copyright cannot ship. Corpus and music carry meticulous CC BY attribution.
TTS audio, glossing and CEFR grading are precomputed at build time. Scaling Versos is a bandwidth problem, not a GPU problem.
One Cloudflare Pages Function proxies TTS and music from R2, with a D1 ledger — everything else is static files at the edge.
Versos is a free-to-learn public product from DSL4 Digital, with Viva Grafix shaping poetry as the front door to a language. Its privacy and copyright promises are made credible by the engineering underneath, then made understandable in the interface.