Questi
Questi: An interactive study assistant for working through questions and exam practice. Ranked #17 of 29 in Homework Help Software by our editors (7.5/10); pricing: Free plan; best for interactive exam and textbook study.
At a glance
- Editor score7.5 / 10
- PricingFree plan
- Best forInteractive exam and textbook study
- Free planYes
- Image question inputYes
- Founded2024 · Seongnam-si, Gyeonggi-do, Republic of Korea
- Facts checked19 Sep 2026
Where it wins
- Turns uploaded problem images and PDFs into detailed solutions
- Supports follow-up questions and generates similar practice problems
- Adds textbook chat, quizzes, exam analysis, and essay correction
Where it doesn't
- Paid plan pricing is difficult to compare across the listed tiers
- Special emphasis on math, physics, and engineering may not suit every learner
- Available on web and iOS, with no other platform listed
Our verdict on Questi
Questi is an AI study assistant for students who want help solving academic questions and preparing from course materials. Learners can upload images of problems or textbook PDFs for detailed explanations, then ask follow-up questions in a conversation. Its stated subject coverage spans general school subjects and major-specific work, with particular emphasis on mathematics, physics, and engineering. Web access and an iOS app give it two ways to study, while its tools extend beyond one-off answers into practice and review.
Its strongest fit is interactive, material-based study. Similar problem generation gives learners another question to work through after an explanation, and AI-generated cramming quizzes can draw on textbook uploads. Book Chat and personal library tools support working with saved study material; exam analysis, exam similarity analysis, question review, and essay correction address review and writing tasks. This breadth makes Questi more suited to a study workflow than to a narrow answer lookup, though students who need a different platform ecosystem should weigh its web and iOS availability.
Questi is freemium and offers a free plan alongside Basic, Plus, Super, and Premium. According to the vendor's plans page, Basic is KRW 6,900 per month; the listed tier names alone do not make paid-plan differences easy to compare. Addon T is priced at USD 3.27 per month and includes automatic monthly credit recharge and a 25% discount on additional feature fees. Questi was founded in 2024. Students seeking image and document-based explanations, follow-up help, and exam practice should consider it; buyers who need clear side-by-side paid plan comparisons may prefer to evaluate alternatives before choosing a tier.
Your product? Our editors can test Questi in depth and publish a review, labelled as paid · from $149/mo →
Questi pricing
All 5 Questi plans and prices →
Questi fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Worked solutions | Yes |
| Step-by-step explanations | Not verified |
| Image question input | Yes |
| Document uploads | Yes |
| Subject coverage | Broad |
| Mobile apps | Yes |
| Deployment | Cloud, Mobile |
| Platforms | Web, iOS |
| Pricing | Free plan (source) |
| Website | questi.kr |
| Facts checked | 19 Sep 2026 |
Alternatives to Questi
- BrainlyA broad homework-help service combining community answers, AI, and expert support.9.4
- Course HeroA broad study toolkit that pairs course materials with tutor and AI explanations.9.3
- GauthFree homework help for students who want worked solutions across web and mobile.9.2
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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