Welcome to Nexus

Your guided study plan

Your course, cards, and readers — built for your route.

Do this next

Today’s plan

20 min

Progress

Your course

Lv 1
0%course
0 day streak

0 XP earned

0 / 80 XP to level 2

Sequence

Learn → practice → review → read

Community progress

Your global standing

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Course

Your path

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When the course is done

Final exam and certificate

Optional. Opens when the course is complete. A pass is C+ or better.

Community

Global leaderboard

Only learners who opt in appear here. XP is verified by the server.

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Top learners

Rankings

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Global Nexus XP rankings
RankLearnerTargetStreakXP
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Privacy: joining is optional. The board shows your display name, XP, language, streak and rank — nothing else. Your email and your answers stay private. Without an account you still get a private comparison.

Reference tools

Explore

Look up a word, a rule, a full set of verb forms, or where something came from.

Optional AI

Tutor & language tools

Ask for a concise pattern explanation or compare a machine translation. The verified course stays the source of truth.

Pattern tutor

Ask about a pattern

Optional
Checking tutor configuration…

Only your question and route are sent — to the Nexus server tutor, or directly to your own AI if you connected one in Settings.

Ask a question to get a short five-part answer.

Optional translation check

Compare a translation

Machine generated
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Enter text to compare a machine translation.

Authentic examples

Look up real examples

Official sites

    Unified retrieval

    Search

    One query returns cognates, verbs, grammar terms, comparison rules, and conjugated forms.

    Enter a word or grammatical feature above.

    Curated over exhaustive evidence

    Cognates

    Default to learner-ready sets, or expose review and research records when you need the full corpus.

    Transfer what you already know

    Pattern Lab

    Everything here is shown for your two languages only.

    English → Spanish

    Learn transferable patterns first, then attach exceptions and high-frequency chunks.

    Choose a learning route.

    Verb groups and their forms

    Verbs

    Each verb shows the few key forms worth learning, plus a table of its main tenses.

    Side-by-side systems

    Grammar

    Compare the same feature across Spanish, Portuguese, French, Italian, and Romanian.

    Spaced review

    Study

    Rate each answer — Nexus schedules the next review for you.

    0 / 00 due

    Local glossary + live and offline sources

    Dictionaries

    Look up a word immediately, then install full open dictionary packs when you need offline coverage.

    Look up any word to see course matches and Wiktionary definitions.

    Full offline resources

    Dictionary packs

    Open data

    Dictionaries download separately so the app stays small.

    Reading path

    Library & reader

    Stories, free books, scriptures, and your own files.

    Built in and aligned

    Starter readers

    English → Spanish

    Simple stories, your language and the new one side by side.

    Choose a language and load its Top 100 shelf.
    The library catalog loads on demand.

    Latter-day Saint scripture shelf

    Read and compare by verse

    Loading shelf…

    Read any two chapters or sections side by side, verse by verse.

    Loading scripture catalog…
    Left reading

    Right reading

    Current official editions

    Public-domain editions, named so you can see which translation you are reading.

    Private document reader

    Read and discuss your PDF

    Local file

    Your PDF stays on this device.

    Source catalogs determine availability. Project Gutenberg primarily assesses U.S. copyright status; readers outside the United States must check local law. Wikisource and Internet Archive items retain their individual license or rights notices.

    Play to remember

    Games

    Short games built from your own route vocabulary.

    Best scores, everywhere

    Game leaderboards

    Every game keeps its own worldwide board. Your best score is the one that counts.

    #PlayerLearningScore

    Spelling

    Spaceman

    0 rescued

    Guess the word one letter at a time before the astronaut drifts away. Accents are forgiven.

    Arcade

    Star Defense

    0 pts

    Catch a falling star, answer the question, win lives and power. You have three lives.

    ♥♥♥

    Sentences

    Fill the gap

    0 / 0

    Pick the missing word to complete a real sentence from your route.

    Speed

    Word Sprint

    0

    You get sixty seconds. Pick the word that matches. Every right answer in a row is worth more.

    Memory

    Fade Recall

    0

    A word appears, then fades away. Type it before it is gone from your head too.

    Word types

    Silly Story

    0

    Each blank needs one kind of word. Pick the right kind and it goes into the story — a wrong pick never does, so the story always makes sense.

    Speed

    Typing Test

    0 wpm

    Type each sentence exactly as it appears, accents and all. You have sixty seconds.

    Going further

    Overachieve

    Topics the course does not cover, because most people do not need them — until they do.

    Anything else

    Ask for a topic

    Name any subject and Nexus builds a pack for it.

    Learn together

    Classroom

    Students join with a code. Teachers need a free account.

    Students

    My class

    Not joined

    Your learning shelf

    Saved links

    Anything worth coming back to.

    0 saved

    Private collection

    Save a resource

    Encrypted locally

    Nexus keeps the link and your notes. It does not copy the page.

    Change the details

    Stored on this device. Synced if you sign in.

    Study and writing shelfFree guides from universities. Tap one to keep it.

    Searchable collection

    My links

    Save your first useful language link.

    Official pathways

    Language certifications

    Verify requirements

    Pick the certificate you are working toward.

    Portuguese

    CAPLE for European Portuguese; Celpe-Bras for Brazilian Portuguese.

    CAPLECelpe-Bras
    Romanian & Latin

    Romanian options vary by receiving institution. Latin exams generally measure reading/academic achievement rather than CEFR speaking proficiency.

    ECL exam systemNational Latin Exam

    Library & reader

    Bilingual reader

    Two languages, side by side. Long-press any word for its meaning.

    Real books and songs are rarely translated word for word. Translators pick the phrase a native speaker would actually say, so the two sides carry the same meaning even when the words differ.

    0%
    Left text

    Choose a book from the library

    Use “Read left” on a library book, or import a text file below.
    Right text

    Optional paired edition

    Use “Pair right” on another edition or import a text file.

    Reading history

    Book completion

    +0 reading XP

    Optional cosmetics only

    Cosmetic theme shop

    Vocabulary, grammar, dictionaries, study scheduling, and exports remain free.

    Premium cosmetics

    Theme purchases are coming soon

    Preview every design today. PayPal checkout will appear only after secure automatic theme delivery is complete. Nexus does not collect payment in this release.

    Source data

    Workbooks

    The downloadable grammar and cognate workbooks are being prepared for a future release. Everything in them is already searchable inside Nexus — try the Cognate corpus, Verb explorer, and Grammar charts.

    Local-first preferences

    Settings

    Your name

    Choose the name used in greetings and progress messages.

    Interface language

    Learning route

    Pick what you know and what you are learning.

    Regional varieties

    Choose which pronunciation profile the device voice should prefer.

    Colors that work for your eyes

    Nexus never uses color alone to tell you something — correct and wrong answers also carry a ✓ or ✕. Pick a palette that separates clearly for you.

    ✓ Correct✕ Not yet! CarefulHighlight

    This also sets the colors used for verb endings in every conjugation chart, in all seven languages.

    EndingsIyouhe / sheweyou allthey

    Reading accessibility

    Text-to-speech

    Piper generates speech locally with no subscription or per-use fee. Choose a separate engine and voice for every language.

    Checking speech engines…
    One matching voice per modern language is recommended for a one-time download. Alternatives are optional, remain on this device, and show their licenses before download.

    Daily review target

    Theme

    Free accessibility

    Reading font

    Always free. Pick what is easiest on your eyes.

    Pattern samplecommunication → comunicaciónClear letterforms make differences easier to spot.

    Feedback and community

    Sound & leaderboard

    Sign in to join. Guests can still see a private comparison.

    Unlimited free option

    Your own AI

    The built-in AI is free. Connect your own for unlimited use.

    Continuity

    What your tutor remembers

    Your tutor picks up where you left off instead of starting over. This stays on your device, and syncs to your account when you sign in.

    Account

    App maintenance

    Update Center

    v1.1.0

    Check this Nexus server for quality-of-life improvements and install a ready app update without resetting your learning.

    0cards & schedules 0books & positions 0saved links & notes 0voice profiles 0XP retained
    Ready to checkYour encrypted progress and downloaded voices use separate storage from the app update cache.
    Keep the same Nexus address to retain this browser's encrypted progress and downloaded Piper voices. Server operators should also preserve .env and runtime/.

    Privacy

    Guest progress is encrypted in this browser. Progress on this device is encrypted. If you sign in, a copy is stored on the Nexus server so your devices match — that copy is not end-to-end encrypted, so keep anything private out of your notes.

    Welcome to Nexus

    Let's set you up

    Step 1 of 3

    Why most apps don't work

    People practice for months and still freeze in a real conversation. That's because most apps hand you finished phrases — where is the bathroom? — without ever showing you how the language is built, so you can never say anything they didn't teach you.

    What Nexus does instead

    You start with the foundations: the sounds, what each kind of word does, and how a sentence fits together. Then you learn patterns rather than lists — a single ending rule can unlock hundreds of words at once. And you build on what you already know: thousands of words look and mean nearly the same in both your languages, and Nexus shows you exactly which ones you can trust.

    Foundations first, then patterns. That's how you get to your own sentences instead of memorized ones.

    Tick anything that usually makes reading or using an app harder for you. Nexus will set itself up to match, and you can change any of it later in Settings.

    None of these are recorded anywhere. They only change how this device shows the app.

    Download your language pack

    Words, verbs and voice for offline use. About 2 MB.

    Personal AI tutor

    Explains any pattern in your own words. Free, no key needed.

    Put Nexus on your home screen

    It opens full screen with no browser bar, works offline, and behaves like any other app on your phone.

    Free, and works without an account. An account only syncs progress across devices.

    Interactive scripture

    Selected verse

    Highlight
    Saved locally with your encrypted Nexus progress.

    Plain-language agreement

    Terms & conditions

    Nexus is an educational study tool, not a school, translator of record, certification authority, legal service, or medical service.

    AI explanations and machine translations are optional drafts. Verify important meanings, regional usage, exam requirements, and official documents with qualified sources.

    You may open your own files and save links. You are responsible for having permission to use that material. Nexus does not republish linked pages, and local PDFs remain on your device unless you deliberately send an excerpt to the configured AI.

    External sites, exams, voice downloads, and PayPal have their own terms and privacy practices. Cosmetic purchases do not restrict the free learning core.

    Account

    Sync across devices

    Power-up question
    Where should I start?

    Answer honestly — nothing is recorded.
    Final exam · reading and writing

    Plain language