Everything in Rex

Rex Tutor

Ask anything. Rex explains it step by step. Math, science, history, coding. Every subject.

Study Boards

Put notes, charts and ideas on big open boards. Everything syncs. Your session waits where you left it.

Solver

Type an equation. Rex solves it exactly, then shows the working line by line. Tap a line you do not follow, and he explains that step. The algebra runs on your device. The answer is right even with no signal.

Flashcards that come back

Turn a board, a chapter or a lecture into flashcards. Rex schedules them. Easy cards wait for weeks. Hard cards come back in minutes. Your progress follows the card, across decks and devices.

Interactive Charts

Small widgets you play with, not read. Build your own. Publish them. Remix someone else's.

Drawing studio

Work by hand with layers and real brushes. A panel made for thinking on paper. Rex can mark your drawing like a teacher. He points at the line that went wrong.

Recorder

Record the lecture. Get the transcript. Where the language allows, transcription runs on your device. The recording stays yours.

The web, on your board

A browser beside your work. SafeSearch stays on. Ads and trackers stay blocked. Look it up. Keep your place.

Voice Mode

Talk to Rex. He answers out loud, hands free. He works on your board while he talks. Then he steps aside, so your board fills the screen. You decide if he can touch it.

Read aloud

Rex reads it out and follows each sentence. Web pages, PDFs, EPUBs, your notes, even a photo of a worksheet. The voice runs on your device. There is no cap on it.

Real sources

Search real published papers from your board. Keep the good ones next to your notes. A claim in your essay can point at something real.

Bring it all in

Drop in a PDF, a file or a photo. Rex scans it onto the board. Your study material sits next to the work, not in another app.

Books, not just pages

Open an EPUB next to your work. Rex keeps your place. Read aloud works on books too. The book, your notes and your questions live on one board.

Let an AI work on your board

Share one board with one link. Give it to ChatGPT, Claude or any AI you use. It can read that board and help on it. It cannot touch anything else. It logs every change. You can kill the link in a tap.

Works without a signal

Boards, drawings, the solver, read aloud and transcription all work offline. Rex saves to your device first. It syncs when the signal comes back. A bad train ride costs you nothing.

It knows what is due

One reminder a day, at your time. A streak that only counts days you showed up. Home shows what is ready before you go looking.