Questi
Questi is a freemium iOS and web study platform for explanations, practice, and AI-assisted learning.
What Questi is
Questi is a freemium iOS and web study platform for explanations, practice, and AI-assisted learning. Users can upload an image of a problem, receive a detailed explanation, ask follow-up questions, and request similar problems. Its AI teachers focus on complex reasoning in math, physics, and engineering; Kedu is described for K–high school students, while Anser answers everyday questions. Study tools include Book Chat, Library, Lecture Chat, exam and similarity analysis, document conversion, English vocabulary, cramming, and essay correction. Cramming accepts textbook PDFs or images and creates multiple-choice, short-answer, or mixed questions with adjustable count and difficulty; generation takes approximately 5–7 minutes. The service also lists written-response authoring and grading, drill exams, solution videos, handwritten solutions, workbooks, eBooks, and presentations. A free plan and paid monthly plans are available. AI Teacher time is capped monthly, while additional features use credits. Login is required, and AI-generated content may be inaccurate.
Good
- Image uploads produce detailed explanations
- Follow-up and similar-problem requests
- AI teachers cover math, physics, and engineering
- Cramming supports adjustable question types
- Free plan available
Watch out
- Login is required for all services
- AI-generated content may be inaccurate
- AI Teacher time has monthly limits
- Additional features use credits
Who it suits
Questi suits students and educators seeking explanations, generated practice, and broad study tools on iOS or the web. It also supports users creating exam and educational materials.
Verdict
Questi combines problem solving, AI teachers, document-based practice, and educational authoring in one study service. Review generated answers carefully and check credit and monthly-use limits.
Plans and prices
From Questi's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Addon T | $3.27 a month | Automatic monthly $3.27 credit recharge · 25% discount on additional feature fees · non-refundable · cannot resubscribe for 3 months after cancellation · USD/month$3.27 |
| Basic | 9,900 KRW a month | AI Teacher time is a monthly maximum; additional features use credits · KRW/month 9,900₩ |
| Plus | 19,900 KRW a month | AI Teacher time is a monthly maximum; additional features use credits · KRW/month 19,900₩ |
| Super | 39,900 KRW a month | AI Teacher time is a monthly maximum; additional features use credits · KRW/month 39,900₩ |
| Premium | 69,900 KRW a month | AI Teacher time is a monthly maximum; additional features use credits · KRW/month 69,900₩ |
The facts
Each one read from Questi's own pages, with the date it was checked.
What it does
- AI accuracy
- The site warns that AI-generated content may be inaccurate and asks users to review it carefully.checked 7 Oct 2026
- AI teachers
- Questi specializes in complex logical reasoning, especially in math, physics, and engineering; Kedu is described as a teacher for K–high school students, and Anser answers everyday questions.checked 7 Oct 2026
- Cramming
- Cramming lets users upload a textbook PDF or images and generate questions, with multiple choice, short answer, or mixed question types and adjustable question count and difficulty.checked 7 Oct 2026
- Credit pricing
- The plans page says 1,500 credits are approximately $1, that its displayed credit amounts use an exchange basis of $1 = 1,500 KRW, and that the rate may vary with market rates.checked 7 Oct 2026
- Education customers
- The plans page says school and academy MOU plans are available by separate inquiry.checked 7 Oct 2026
- Generation time
- The Cramming page says problem generation takes approximately 5–7 minutes.checked 7 Oct 2026
- Login requirement
- The subscription guide says login is required for all services.checked 7 Oct 2026
- Problem solving
- Users can upload an image of a problem to receive a detailed explanation, ask follow-up questions, and request similar problems.checked 7 Oct 2026
- Question generation
- The site also lists tools for written-response authoring and grading, drill exams, solution videos, handwritten solutions, and educational materials such as workbooks, eBooks, and presentations.checked 7 Oct 2026
- Study tools
- The site lists Book Chat, Library, Lecture Chat, exam analysis, exam similarity analysis, document conversion, similar problem generation, English vocabulary, cramming, and essay correction.checked 7 Oct 2026
- Support
- The site lists [email protected] as its customer service contact and directs refund inquiries to customer support.checked 7 Oct 2026
The company
- Company
- The site identifies BNZ.Corp and lists its address as 307, 97, Baekhyeon-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea.checked 7 Oct 2026
- Founded
- 2024checked 28 Sep 2026
- Headquarters
- Seongnam-si, Gyeonggi-do, Republic of Koreachecked 28 Sep 2026
Money
- Plan limits
- The plan guide says AI Teacher time is the maximum monthly usage time and additional features can be accessed using credits, with fees varying by subscription plan.checked 7 Oct 2026
Where it runs
- Platform availability
- The opened product and plan pages are web pages, and the plans page refers to using BookChat on the web and a downloaded version without specifying its operating system.checked 7 Oct 2026
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