CompareUpdated July 2026
Eightball vs Turbo AI
Turbo AI (formerly TurboLearn) is the fastest way to turn a lecture, PDF, or YouTube link into polished notes, flashcards, and even a podcast. Eightball is a study system built for verification: AI answers cite your actual course pages, practice tests get real AI grades, and Canvas keeps your files synced. Pick speed-to-notes — or exam prep you can check.
| Feature | Eightball | Turbo AI |
|---|---|---|
| AI answers cite your source files | Page, slide, and timestamp citations on answers from your materials | Notes and chat don't cite back to your source pages |
| AI-graded practice tests | Free response graded with letter grades and per-question feedback | Auto-generated quizzes with explanations — written answers aren't graded |
| Canvas LMS sync | Daily auto-sync of course files | No LMS integration — files are uploaded manually |
| AI chat with your materials | Grounded in your whole course, source-only by default | Chat lives inside each note, over your generated notes |
| Live lecture capture | Recording, live transcript, AI notes, and transcript chat | One-tap recording into structured notes with timestamps |
| Editable, collaborative notes | Notes are generated from your lectures, not co-edited | Real-time co-editing with AI comments and suggestions |
| Podcast and audio recaps | Not offered | Notes become downloadable podcasts — quick summary or deep dive |
| Native mobile apps | Web app only | iOS and Android — 4.8 stars, 33K App Store ratings (July 2026) |
| Free to start | Free to start, with paid plans for unlimited studying | Caps not published — reviewers report hitting the paywall fast |
What does Eightball do that Turbo AI doesn't?
Turbo AI is built to capture — it gets you from a lecture to good-looking notes remarkably fast. Eightball is built to verify: it indexes every file in your course, backs AI answers with citations to those files, and grades your practice, so you know what you actually know before the exam does.
AI answers you can check
Ask anything about your class and get answers grounded in your uploaded files, with page, slide, and timestamp citations. Turbo AI's chat works inside individual notes and doesn't point back to sources.
Learn morePractice tests with real grading
Multiple choice, true/false, and free-response questions graded by AI with a letter grade and per-question feedback. Turbo AI generates quiz questions with explanations, but nothing grades your written answers.
Learn moreMath that survives the exam
Work through calculus, statistics, and physics problems step by step with real notation, grounded in your course materials and cited to your textbook.
Learn moreLectures you can interrogate
Record a lecture and get a live transcript, organized AI notes, and a chat that searches the transcript and cites timestamps. Turbo AI's timestamps decorate its notes — its chat doesn't link answers back to moments in the recording.
Learn moreWhat's the difference between a notetaker and a study system?
Turbo AI's pitch is speed and polish: drop in a PDF, paste a YouTube link, or hit record, and it turns the material into formatted notes — with flashcards, quizzes, and podcasts generated on top. Its homepage claims a 30-second processing time, and its chat is anchored to your notes: you chat 'in any note' rather than across a course.
Eightball flips the starting point. It indexes your entire course — every slide deck, reading, and lecture recording — and its AI answers only from those files by default, citing the exact page or timestamp behind each claim. Notes and flashcards are the beginning; graded practice tests and checkable answers are the point.
Can you check what the AI tells you?
Turbo AI's homepage advertises a 99% accuracy rate — a self-reported marketing figure. A 2026 hands-on review by tldv.io found serious transcription errors, calling one test transcript 'completely unusable.' And because its notes and chat don't cite sources, there's no quick way to verify a claim you're not sure about.
Eightball assumes AI will sometimes be wrong and designs for it: chat answers carry citations to the exact pages, slides, or lecture timestamps they drew from, so checking a claim takes one click instead of a re-read. For anything that shows up on an exam, that difference matters.
When is Turbo AI the better choice?
Turbo AI is genuinely excellent at what it set out to be, and the traction is real — TechCrunch reported 5 million users and eight-figure ARR in October 2025, with the company profitable on just $750K of outside funding.
- You want audio recaps. Turbo AI turns notes into downloadable podcasts — a quick summary or a deep dive — for the commute or the gym. Eightball has no audio-output feature.
- You study on your phone. Native iOS and Android apps with cross-device sync, rated 4.8 stars across 33,000 App Store ratings as of July 2026. Eightball is a web app.
- You live in your notes. Real-time co-editing with AI comments and suggestions, shared folders, YouTube-link ingestion, and spaced-repetition flashcards make it a strong everyday notes workspace. Eightball generates notes from your lectures rather than offering a collaborative editor.
How much do Eightball and Turbo AI cost?
Turbo AI has no public pricing page — plans only appear in-app. As of July 2026, its Unlimited plan costs $9.99/month billed annually (about $119.99/year) or $19.99/month billed monthly, per multiple independent reviews and its App Store listing; the free tier is real, but its monthly caps aren't published. Eightball is free to start — try AI chat, flashcards, and practice tests from your own materials — with paid plans for unlimited studying. See current plans and pricing.
How do I switch from Turbo AI to Eightball?
There's nothing to export — Eightball rebuilds your study material from the course files themselves, so your existing notes can stay where they are.
- Create your account free. Signing up takes under a minute.
- Add your course. Upload slides, PDFs, and readings, or connect Canvas and let Eightball sync new files automatically every day.
- Study with receipts. Ask the AI tutor anything and check its citations, then take generated practice tests and get a letter grade with per-question feedback.
Frequently asked questions
Is Turbo AI free?
There is a real free tier, but every feature is capped and the caps aren't published anywhere — one hands-on tester hit the paywall after two recordings and a few quiz questions (tldv.io, 2026). Eightball is free to start, with paid plans for unlimited studying.
How much does Turbo AI cost?
As of July 2026, Turbo AI Unlimited costs $9.99/month billed annually (about $119.99/year) or $19.99/month billed monthly, per multiple independent reviews and its App Store in-app purchases — there's also a $9.99 weekly option. The company has no public pricing page.
Are TurboLearn and Turbo AI the same app?
Yes. TurboLearn AI rebranded to Turbo AI in 2025 as its audience expanded beyond students; accounts and notes carried over, and the official domain is now turbo.ai.
Does Turbo AI cite sources or page numbers?
Citations aren't an advertised feature — its official pages never mention them, and its notes and chat don't link claims back to pages, slides, or timestamps in your files. Eightball cites the exact source location on answers from your materials.
Does Turbo AI integrate with Canvas?
No LMS integration is offered — you upload files manually. Eightball connects to Canvas and auto-syncs your course files daily.
Does Turbo AI grade practice tests?
It generates unlimited quiz questions with answer explanations and adjustable difficulty, but it doesn't AI-grade free-response answers or assign letter grades. Eightball grades every question type, including written answers, with per-question feedback.
Is Turbo AI accurate?
Its homepage claims a 99% accuracy rate, but that's self-reported: a 2026 hands-on review by tldv.io found serious transcription errors, calling one test transcript 'completely unusable.' Verify anything high-stakes.
Can Turbo AI record live lectures?
Yes — one-tap recording turns audio into structured notes with key points, timestamps, and highlights; the free tier caps recording time. Eightball also records lectures, adding a live searchable transcript and a chat that cites timestamps.
Is Turbo AI legit and safe?
Yes. It's a legitimate Los Angeles company — TechCrunch reported 5 million users, eight-figure ARR, and profitability in October 2025 — with a 4.8-star App Store rating across 33,000 ratings as of July 2026. Some users have reported billing and trial-wording complaints (Trustpilot reviews), which the team says it has fixed.
How big is Turbo AI?
Per TechCrunch (October 2025), Turbo AI grew from 1 to 5 million users in six months, was adding roughly 20,000 users a day, and reached eight-figure ARR on only $750K raised. By mid-2026 its founder claimed over 10 million users — a self-reported figure.
Notes are the start. Grades are the point.
Upload your course materials and get a cited AI tutor, generated flashcards, and practice tests that are actually graded — free to start.
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