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Turbo AI is free with unpublished limits, and Unlimited costs $14.99 to $19.99 a month or $69.99 to $119.99 a year on the App Store.
By KevinPrices checked on the US App Store, Google Play and turbo.ai on 14 November 2026
Is Turbo AI free? Yes, with limits: turbo.ai says its free tier includes note generation, flashcards and quizzes, but it does not publish the caps. Paying means Turbolearn Unlimited, which the US App Store lists at $9.99 a week, $14.99 or $19.99 a month and $69.99, $89.99 or $119.99 a year, plus cheaper offers ($19.99 and $29.99 a year, $7.49 a month) that appear only for some users (checked 14 November 2026). turbo.ai has no pricing page (turbo.ai/pricing returns a 404), so your price is whatever offer the app shows you, and its terms say all sales are final. Zemith Plus is $15.99 a month with 1.5M credits and turns PDFs, slides and YouTube lectures into flashcards, quizzes, podcasts and mind maps next to Claude, GPT and Gemini, but it has no live lecture recorder.
ZemithOur pick
If you study from slides, PDFs and YouTube and also pay for a chatbot, Zemith Plus replaces both for $15.99 a month.
- Plus is $15.99/month ($179.88/year) with 1.5M credits. Library holds up to 50 sources per project (PDF, Word, PowerPoint, Excel, EPUB, web pages and YouTube links) and makes flashcards, quizzes, podcasts, mind maps, study guides and infographics from them.
- Ask Claude, GPT, Gemini or Grok about your own course files in the same project, then use web search, deep research and Word or PowerPoint files for essays and assignments on the same plan.
- On Plus you can also add your own OpenAI, Anthropic or Google API key: those chats bill to the provider and use no Zemith credits, while tools such as web search still use credits. A key also unlocks Claude Opus on Plus.
- What Zemith does not do: record a lecture live in the app. You upload a recording (audio or video up to 25 MB) to Speech to text, at 800 credits per started minute. If you record every class, that is Turbo AI's real strength.
Turbo AI Unlimited$19.99/mo
Highest monthly App Store price; $14.99/mo and $69.99 to $119.99/yr offers also listed · live lecture recording · chatbot model not named
Zemith Plus$15.99/mo
1.5M credits · 50-source Library with flashcards, quizzes, podcasts · Claude, GPT, Gemini, Grok · files and web search
Start free on Zemith
Free plan · $0 today · Cancel anytime
Upload lecture slides, PDFs and YouTube lectures, then make flashcards, quizzes, a podcast or a mind map and ask Claude or GPT about them in the same project.
Three catches in how Turbo AI sells Unlimited.
The free tier is called generous, but its limits are not published anywhere.
“Yes! Turbo AI offers a generous free tier that includes note generation, flashcards, and quizzes. You can upgrade to unlock unlimited features and advanced AI capabilities.”Turbo AI FAQ (turbo.ai), Official FAQ, Checked 14 Nov 2026
On ZemithZemith publishes its numbers: Free is 1,100 credits a day for chat with the free models (no Library or study tools), Plus is 1.5M credits a month, and every Library output has a fixed price (flashcards 5,000 credits, quiz 10,000, podcast 10,000).
There is no price list, and the price can change at any time.
“Prices and availability of the Services and subscription options may change at any time. Prices are as posted on the Website and App at the time of purchase and remain valid while listed.”Turbo AI Terms of Service, Official policy, Checked 14 Nov 2026
On ZemithZemith's prices are on zemith.com/pricing for everyone: Plus $15.99 a month or $179.88 a year, Professional $29.99 a month or $299.88 a year, and non-expiring top-ups from $10 for 800,000 credits.
Turbo AI's own terms say all sales are final.
“All sales are final. Refunds are only issued in the event of a verified technical malfunction that prevents access to the service.”Turbo AI Terms of Service, Official refund policy, Checked 14 Nov 2026
On ZemithStart on Zemith's Free plan with no card and upgrade only when you need Library. App Store and Google Play purchases of either app go through Apple's and Google's own refund process, so check which store you pay through.
Every workspace tool included in one subscription.
Upload a lecture recording (up to 25 MB) and get a transcript you can add to a Library project. Billed at 800 credits per started minute.
Get finished work, not just answers.
Ask once and get docs, slides, sheets and PDFs that are ready to send.
Hand off the busywork.
Cloud tasks keep working while you're away, on a schedule if you like.
Learn from any file.
Turn PDFs, links and YouTube videos into podcasts, quizzes, flashcards and mind maps.
Stay in flow.
Keep chats, notes and whiteboards open side by side in FocusOS, and switch without losing your place.
Connects to the apps you already use.
Notion, Linear, Canva, Airtable and more. It asks before it creates or changes anything.
Talk to it. Show it your screen.
Real-time voice that can see your camera or screen.
Build it once. Run it anytime.
Chain models and tools on a visual canvas, from one prompt to a finished promo video.
Put routine work on autopilot.
Briefings, reports and reminders run on a schedule and are ready when you need them.
Turn any recording into notes.
Upload a meeting or lecture and get a timestamped transcript you can summarize in one click.
Listen on the go.
Turn docs and notes into natural audio, in many voices.
Use the best model for each job.
GPT, Claude, Gemini, Grok, DeepSeek and more in one chat. Switch whenever you like.
What Turbo AI does well, and where Zemith matches it or does not.
It records the lecture for you and writes the notes.
“Turbo AI listens to your lectures and takes perfect notes. Afterwards, you can review with learning activities of your choice.”turbo.ai, Official product page, Checked 14 Nov 2026
On ZemithZemith has no live lecture recorder. You record with your phone, upload the file (up to 25 MB) to Speech to text and add the transcript to a Library project. A 50-minute lecture costs 40,000 credits, so this suits a few key lectures, not every class.
It keeps formulas and code intact in STEM notes.
“Absolutely! Turbo AI handles math formulas, chemical equations, physics diagrams, and code snippets.”Turbo AI FAQ (turbo.ai), Official FAQ, Checked 14 Nov 2026
On ZemithIn a Zemith project you can ask Claude, GPT or Gemini to work through a formula or a block of code from your own slides, switch models if one explanation does not land, and run code in the cloud sandbox.
At every tier, here is what Turbo AI costs versus Zemith.
Turbo AI prices from the US App Store in-app purchase list on 14 November 2026 (Google Play lists in-app purchases from $7.49 to $99.99 per item). turbo.ai publishes no pricing page or free-plan caps. Zemith prices from zemith.com/pricing. ChatGPT Plus price from chatgpt.com/pricing, checked 12 November 2026.
| Tier | Turbo AI (App Store, US) | Zemith equivalent | What changes on Zemith |
|---|---|---|---|
Free Try before paying | $0: notes, flashcards and quizzes with unpublished caps (one directory lists about 2 hours of lecture processing, 1 PDF and 10 chat messages a month; not confirmed by Turbo AI) | $0, no card: 1,100 credits a day for chat with the free models | Turbo AI's free tier makes flashcards; Zemith Free is chat only, with no Library or study tools |
One week Exam cram | $9.99 for 1 week of Unlimited | No weekly plan; Plus is $15.99 for a month | Two weeks of Turbo AI ($19.98) cost more than a month of Zemith Plus |
Monthly Turbolearn Unlimited | $14.99 or $19.99 a month, depending on the offer shown; $7.49 a month on a "50% Off Forever Monthly" offer | $15.99/mo Plus: 1.5M credits, 50 sources per Library project, flashcards, quizzes, podcasts, mind maps, Claude, GPT, Gemini and Grok | $4 a month less than $19.99, $1 more than the $14.99 offer, with a multi-model chatbot, web search and file creation included |
Yearly Turbolearn Unlimited | $69.99, $89.99 or $119.99 a year; $19.99 and $29.99 annual offers also listed | $179.88/yr Plus | Turbo AI yearly is cheaper if it is the only AI you pay for; Zemith also replaces a separate chatbot |
Study app + chatbot What many students pay | $119.99/yr Turbo AI + $20/mo ChatGPT Plus = $359.99 a year | $179.88/yr Zemith Plus | Save $180.11 a year on one bill |
Lecture recording Live in class | Records lectures in the app and writes organized notes | No live recorder: upload audio or video up to 25 MB (flac, mp3, mp4, m4a, ogg, wav, webm) to Speech to text | 800 credits per started minute, so a 50-minute lecture is 40,000 credits |
Your own AI key Bring your own API key | No such option on turbo.ai or its store listings | Plus and Professional can add OpenAI, Anthropic or Google keys | Those chats bill to your provider account and use no credits; tools still use credits |
Our verdict: Turbo AI is worth paying for if you record most lectures; if you study from files and pay for a chatbot, Zemith Plus is cheaper.
- Turbo AI has a free tier with unpublished caps. Unlimited is $9.99 a week, $14.99 or $19.99 a month, or $69.99 to $119.99 a year on the US App Store, with no pricing page on turbo.ai and an all-sales-final policy.
- Its real strength is live lecture recording. Zemith does not record in class; it transcribes uploaded recordings up to 25 MB at 800 credits per started minute.
- Zemith Plus is $15.99 a month ($179.88 a year) with a 50-source Library (flashcards, quizzes, podcasts, mind maps) plus Claude, GPT, Gemini and Grok, web search and file creation, so it replaces a study app and a $20 chatbot.
- Still deciding whether to pay? Read Is Turbo AI worth it? for who should buy it and who should not.
Questions people ask about Turbo AI pricing.
Is Turbo AI free?
Yes, with limits. turbo.ai's FAQ says the free tier includes note generation, flashcards and quizzes, and that upgrading unlocks unlimited features. Turbo AI does not publish the caps. One review directory lists about 2 hours of lecture processing, 1 PDF upload and 10 chat messages a month, which Turbo AI has not confirmed, and one App Store reviewer wrote that the app asked for payment after their first video upload.
How much does Turbo AI cost?
On the US App Store (checked 14 November 2026), Turbolearn Unlimited is listed at $9.99 for a week, $14.99 or $19.99 for a month, and $69.99, $89.99 or $119.99 for a year. The list also has $19.99 and $29.99 annual offers and a $7.49 "50% Off Forever Monthly" offer. Google Play shows in-app purchases from $7.49 to $99.99 per item.
Why does Turbo AI show me a different price than my friend?
turbo.ai has no public pricing page (turbo.ai/pricing returns a 404), and the App Store lists several prices for the same Unlimited plan. Its terms say prices are as posted at the time of purchase and may change at any time, so the offer you see in the app is the price you pay. Check what renews after any first-week or first-month offer.
Can I get a refund from Turbo AI?
Turbo AI's terms say all sales are final and refunds are only issued for a verified technical malfunction that prevents access. Cancelling keeps premium features until the end of the billing period. If you paid through the App Store or Google Play, refund requests go through Apple or Google.
Is Turbo AI worth it?
It is worth it if you record most of your lectures, because live recording with automatic notes is what it does best. If you mostly study from slides, PDFs and readings and also pay $20 a month for a chatbot, Zemith Plus at $15.99 a month covers both. Our full answer is in the post Is Turbo AI worth it?
Can Zemith record lectures like Turbo AI?
No. Zemith has no live lecture recorder. Speech to text transcribes an audio or video file you upload (up to 25 MB; flac, mp3, mp4, m4a, ogg, wav or webm) at 800 credits per started minute, and you can add the transcript to a Library project to make flashcards and quizzes.
Can I use my own OpenAI, Anthropic or Google key on Zemith?
Yes, on Plus and Professional, on web, iPhone and Android. Chats on that provider's models are billed to your provider account and use no Zemith credits; tools such as web search and Library outputs still use credits. A key also unlocks that provider's top models, such as Claude Opus on Plus.
Turn your lecture files into flashcards and quizzes next to Claude and GPT. Start on Zemith for $0 today.
See Zemith plansRead these next to compare the other tools.
- The best Turbo AI alternatives, ranked by real cost
- Is Turbo AI worth it? Who should pay and who should not
- NotebookLM pricing 2026: Free, Plus and the real cost
- Chat with PDF & document analysis in Zemith
- AI transcription in Zemith: upload audio, get text
- Bring your own OpenAI, Anthropic or Google API key
- Zemith for students
Article by Kevin · Founder at Zemith
Founder of Zemith, the all-in-one AI workspace built for people who use GPT, Claude, Gemini, Grok and Creative Studio every day.
I spend my weeks testing model releases, pricing structures and real document, research and creative workflows across Web, iOS and Android.