Mitochondria produce ATP via oxidative phosphorylation.
From your PDF, p. 24Built for every course you study
Chemistry, calculus, biology, history, languages, physics, and anything else you can put in a study space. Answers stay grounded in your uploads, not the open web.
Study modes
Three ways to learn from the same materials
Live tutoring, a practice feed, and grounded chat, all scoped to one private study space.
Live Tutor
Talk to a tutor on a real video call
Voice in, voice out, with a lip-synced avatar. Briefings built from your indexed materials so answers stay on syllabus.
Practice Feed
Swipeable feed from your own uploads
Quizzes, flashcards, true/false, fill-in-the-blank, and memes, generated from the course materials in your study space.
Grounded Library
Upload once. Retrieve forever.
PDFs, docs, recordings, and YouTube links are chunked and embedded so chat and the live tutor answer from your files, not generic web knowledge.
Simplified process
Making digital studying easy
Create a study space
Name a course or exam topic. It becomes your private container for everything you learn.
Upload & index
Add PDFs, docs, recordings, or YouTube links. Wait for ingest, then retrieval is ready.
Learn every way
Live call, chat and voice, feed swipes, or study tools, all scoped to that space.
Why it sticks
Built to keep you on your own syllabus
From video-bound quizzes to lip-synced live tutoring, everything helps you study from what you already have.
- Grounded answers, every time
Retrieval pulls from your own PDFs, notes, and transcripts before the tutor replies.
- Mobile-first study sessions
Live tutor, chat and voice, and the learning feed, designed for phone-sized focus.
- Sphere keeps you consistent
Streaks, XP, and daily goals so habits stick without the guilt spiral.
Frequently asked questions
Your study queries, solved instantly
Everything you need to know about study spaces, the live tutor, and how your materials stay private.
No. You can chat, use voice, and swipe the learning feed right away. Uploading a PDF, DOCX, recording, or YouTube link just grounds the tutor's answers in your own material.
The UI and generated content support 24 languages. Live voice-to-voice tutoring depends on speech support for your locale. Chat and voice always work as a fallback.
Files are extracted, chunked, and embedded for retrieval inside your private study space, protected by row-level security. Only you can access your spaces and materials.
Android is available through Google Play closed testing (join the testers group with the same Gmail as your Play Store account, then install from the Play testing link). You can also sideload the APK from this site. iOS and Web are coming soon.
Join the LearnSphere testers Google Group with the same Gmail you use on Google Play. Once you are in the group, open the Play testing link from this page and the app will be available to install from the Play Store.
Sphere is your draggable in-app coach across Feed, Learn, and Library. It nudges onboarding steps, warns before streaks break, and tracks your daily goal and XP.
Download the APK from this site, open it on your phone, and allow installs from unknown sources when Android asks. Then sign in and create a study space.
Play Store closed testing
Or sideload the direct APK (v0.2.5). Enable installs from unknown sources. iOS and Web coming soon.Download APK
Get the Android app
Join the testers group with the same Gmail as your Play Store account, then install from Google Play. You will be auto-enrolled in closed testing once you join.
- Join the LearnSphere testers group with the same Gmail as Google Play.
- Open the Play Store testing page and install the app.
Or sideload the direct APK (v0.2.5). Enable installs from unknown sources. iOS and Web coming soon.Download APK