Thea

AI study tool that turns your course materials into active-recall practice.

Tool type: AI study tool
Made for: Students (also educators and institutions)
Runs on: Web, iOS, Android; The site links a web app plus App Store and Google Play listings.
Last checked: 29 Oct 2026; 2 product sources

What it does

Thea is a study tool that turns course materials into practice questions and study guides. Users can upload lecture slides, PDFs, Word and PowerPoint files, images, audio, video, YouTube links, and notes, drawing on more than 90 supported file types.

Its Smart Study mode asks questions based on the uploaded material rather than handing over answers, drawing on active recall and spaced repetition so concepts resurface before they are likely to be forgotten. Thea also tracks mastery across sessions, and public study kits in biology, math, and history can be tried without an account.

The main product is aimed at students, with separate pages for educators and institutions. The site says Thea is free for students, that every study kit created is free, and that premium features exist for those who want more. A free account is the usual way to begin, with no credit card required. Mobile app download links for iOS and Android are listed alongside the web app.

What it can do

Generates active-recall practice questions from uploaded course material.
Creates study guides from uploads, which can be downloaded.
Accepts over 90 file types, including PDF, DOCX, PPTX, PNG, MP4, MP3, YouTube links, and notes.
Uses spaced repetition to resurface concepts before they are forgotten.
Tracks mastery and progress across study sessions.
Offers public study kits in biology, math, and history without an account.

Before you choose

Premium features exist, but plan names and prices are not listed on the main pages, so verify cost before upgrading.
Awards and rankings on the site are self-reported and are not independent verification.
Institutional integrations are not detailed on the main pages.

Listed under

Get started

Free study kits can be tried without an account; creating an account is the main start route.

Create a free account or try a public study kit from the homepage.
Upload course materials such as slides, PDFs, notes, or YouTube links.
Start a Smart Study session and answer the generated questions to build recall.

Create a free account

Plans and prices

Free for students per the site; premium plan names, prices, and billing intervals should be verified with Thea before purchase.

Thea is free to use. See their pricing page ↗

Sources for this overview

Product pages, documentation, and pricing checked 29 Oct 2026. Each source supports part of the overview; availability and prices can change.

Thea | Award Winning Study Tool ↗www.theastudy.com
Thea | Features ↗www.theastudy.com

Ratings and reviews

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What’s changed

Free account

See what’s changed at Thea

Launches, price moves and pivots, each with a date and a source. Free with an account.

Signals

Free account

See Thea’s signals

Launch traction, hiring and release activity, tracked over time. Free with an account.

Data and security

Free account

See how Thea handles your data

Training on your files, compliance, hosting and the models behind it. Free with an account.

Compare with similar tools

Free account

Compare Thea side by side

Prices, platforms and features against similar tools, with sources. Free with an account.

Where this comes from

How we research

Company website: theastudy.com: product, pricing and policy pages
YC directory mirror: Batch and company name
Web search: Confirms the official site
Social accounts: Accounts the company links, and its posts on X
Human review: Checked by a person
knowledge_base
manual_review

Last checked 29 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.