Kibin
Kibin operates an AI-powered Study App (web and iOS) that converts uploaded lectures, PDFs, audio, and videos into personalized study guides, quizzes, and flashcards, alongside a human editor marketplace for essay editing and proofreading that has served 1.77M+ students since 2011.
- Company typePrivate
- Founded2011
- HeadquartersBerkeley, United States
- Headcount11–50
- GTM typeB2C
- OfferingSoftware
What Kibin does
Kibin is a Berkeley, California-based education technology company operating two complementary services. Its flagship Kibin Study App, launched in 2024, is an AI-powered study platform available on web and iOS (Android in development) that converts user-uploaded lectures, PDFs, audio files, and YouTube links into personalized study guides, multiple-choice quizzes, spaced-repetition flashcards, and Feynman-technique explanations, with real-time per-topic mastery tracking. AI processing is performed via third-party services and user content is not used to train proprietary models.
Since 2011, Kibin has operated a parallel Kibin Essay Editing Service, a marketplace connecting customers with a global network of vetted human editors for proofreading and editing across six customer segments: students, academics, authors/creatives, businesses/professionals, college applicants, and job seekers. Supporting tools include an Essay Examples Library (hundreds of thousands of samples across 27 subjects), a free Paper Grader, and a Thesis Builder.
The company monetizes through three streams: freemium-to-Pro subscriptions for the Study App (weekly/monthly/annual, processed via Stripe/PayPal on web and Apple on iOS), recurring monthly/annual subscriptions to the Essay Examples Library bundled with non-rollover editing credits, and per-order transactional fees for editing services priced by word count and turnaround speed. Headcount is 11-50 employees, the only disclosed funding is a $545,000 seed round from 500 Global in May 2011, and the company claims to have served 1.77 million+ students and edited 50 million+ words over its 14-year history. Founders Travis Biziorek (CEO) and Jim Nguyen (CTO) remain in place, and the company is privately held with no parent or subsidiary structure.
Kibin firmographics
Firmographics- Name
- Kibin
- Legal name
- Kibin, Inc.
- Website
- https://kibin.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Kibin operates an AI-powered Study App (web and iOS) that converts uploaded lectures, PDFs, audio, and videos into personalized study guides, quizzes, and flashcards, alongside a human editor marketplace for essay editing and proofreading that has served 1.77M+ students since 2011.
- Ownership category
- akta.pro rank
Kibin industry classification
Industry- Product category
- AI-powered educational study platform and academic editing services
- NAICS
- Educational Support Services (611710), Exam Preparation and Tutoring (611691)
- SIC
- Services-Educational Services (8200)
- akta.pro primary industry
- Note-Taking, Reading & Comprehension Strategies (EDANADAC)
Keywords
Where Kibin is headquartered
LocationHeadquarters
- HQ city
- Berkeley
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Kibin business model
Business model- GTM type
- B2C
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Study App Pro Subscription: AI-powered study platform subscription with weekly, monthly, and annual billing cycles. Free tier allows upload of PDF (up to 75 pages), audio file, or YouTube link. Pro subscription provides unlimited uploads, support for larger files, and full mastery tracking. Processed through Stripe (web/Android) or Apple App Store (iOS).
- Essay Examples Library Subscription: Monthly or yearly subscription granting access to the Essay Examples Library containing hundreds of thousands of sample essays in 27 academic subject areas. Each subscription includes free editing credits that can be used for Kibin's essay editing service. Credit balances do not roll over between billing periods.
- Per-Order Essay Editing: Essay editing and proofreading services purchased on a per-order basis without requiring a subscription. Pricing based on word count and delivery speed selected. Customers can choose specific editors or be matched with an editor.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier for Study App |
| Subscription | Monthly | Pro subscription for Study App |
| Subscription | Annual | Essay Examples Library Subscription |
| Transaction based/ take rate | Pay-as-you-go | Per-order Essay Editing |
Go-to-market motion2 records
Distribution channels6 records
Marketing channels5 records
Kibin product offering
Product offeringCore offering
Kibin provides (1) the Kibin Study App, an AI-powered study platform that ingests notes, PDFs, audio files, and YouTube links and generates personalized study guides, multiple-choice quizzes, spaced-repetition flashcards, Feynman-technique explanations, and real-time mastery tracking; and (2) the Kibin Essay Editing Service, an on-demand professional editing and proofreading service backed by a 4-step-vetted global editor network covering students, academics, admissions applicants, authors/creatives, businesses, and job seekers, with per-order and subscription billing.
Product overview
Kibin operates two distinct core services: (1) the Kibin Study App - an AI-powered study platform (web and mobile) that turns notes, documents, audio, and video into personalized study guides, quizzes, flashcards, and explanations with mastery tracking; and (2) the Kibin Essay Editing Service - a professional editing marketplace connecting users with human editors for proofreading, editing, and feedback across student, academic, admissions, author/creative, business, and career use cases. The Study App includes modules for Quizzes, Flashcards, Explain It, Study Guides, Mastery Tracking, Study Packs, and Courses & Exams. The Essay Editing Service includes the Essay Examples Library, Paper Grader, Thesis Builder, and specialized editing sub-brands for Students, Academics, Admissions, Authors/Creative Writers, Businesses, and Job Seekers. A free tier is available with limited uploads; Pro subscriptions offer unlimited uploads and full features.
Differentiator
Problem solved
Functional benefit
Brands
- Kibin Study App: AI-powered study platform (mobile and web) that turns notes, documents, audio, and video into quizzes, flashcards, explanations, and mastery tracking.
- Kibin Essay Editing Service
Products and services
- Kibin Study App AI-powered study platform available on web browser and iOS that turns user-uploaded notes, documents, audio files, and YouTube videos into personalized study guides, multiple-choice quizzes, spaced-repetition flashcards, Feynman-style explanations, and real-time per-course mastery tracking. Free tier allows one PDF (up to 75 pages), one audio file, or one YouTube link; Pro subscription unlocks unlimited uploads, support for larger files, and full mastery tracking. Intended for individual students from high school through graduate level.
- Kibin Essay Editing Service Professional essay editing and proofreading service backed by a 4-step-vetted global editor network with diverse academic and professional backgrounds, available 24/7. Customers upload documents, select or are matched with an editor, and receive detailed feedback on grammar, flow, word choice, and structure. Specializations cover student papers, academic dissertations and theses, admissions essays, author/creative works, business documents, and resumes/cover letters. Pricing is per order based on word count and turnaround speed, with editing credits bundled into Essay Examples Library subscriptions.
- Essay Examples Library Searchable database of hundreds of thousands of sample essays covering 27 academic subject areas (Anthropology, Architecture, Arts, Business, Communications, Economics, English, Environment, Geography, Government, Healthcare, IT, Language, Law, Linguistics, Mathematics, Philosophy, Psychology, Religion, Science, Sociology, Sports, Teaching, Travel, Veterinary, World History) and 26+ essay types. Available via monthly or yearly subscription, with each subscription bundling free editing credits usable on the Essay Editing Service. Helps students brainstorm and find inspiration for writing assignments.
- Kibin Paper Grader Free tool that analyzes and grades submitted papers, providing feedback on writing quality for student authors seeking quick, no-cost assessment of their drafts.
- Kibin Thesis Builder Free step-by-step tool that helps students construct thesis statements to better organize essays and academic papers.
- Kibin iOS App Native iOS mobile application of the Kibin Study App, published on the Apple App Store (id 6761867175), enabling students to generate study packs, take quizzes, review flashcards, and track mastery on iPhone and iPad, with in-app subscriptions billed through Apple.
- Essay Writing Blog Educational content resource (Kibin Blog) featuring posts on essay writing, personal statements, college admissions essays, grammar tips, writing strategies, and topic ideas authored by professional editors and writing experts including Susan M. Inez. Supports Kibin's content-marketing strategy.
- Global Editor Network Network of experienced English-language editing experts with diverse academic and professional backgrounds providing 24/7 editing services; editors are screened through a 4-step vetting process covering grammar/style testing, formal application, self-paced training, and an editing test.
Quantifiable outcome
- 98% of Kibin users report better grades
- +1 more outcomes
Companies that use Kibin
Customer profileNamed customers16 records
Segments6 records
Ideal customer profiles5 records
Kibin technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration5 records
AI capability7 records
Feature6 records
Kibin partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- StripecorePayment processing provider for web and Android subscriptions and purchases. Processes Study App subscription billing and per-order editing payments.
- PayPalcoreAlternative payment processing provider alongside Stripe for customer convenience.
- ApplecoreProvides iOS sign-in authentication, Apple App Store distribution for iOS app, and iOS payment processing for in-app purchases and subscriptions.
- GooglecoreProvides Google sign-in authentication for account creation and Google analytics for usage tracking.
Scale indicators5 records
Recent moves6 records
Expansion highlights6 records
Kibin competitors and assessment
Company assessmentDirect peers
- Quizlet: Quizlet is the dominant AI-enhanced study platform offering flashcards, quizzes, and study modes. Directly competes with Kibin Study App for student attention in the same category, with similar free-tier-plus-subscription GTM and broader brand recognition.
- Course Hero: Course Hero operates a study resource marketplace where students share notes, essays, and study guides. Directly comparable to Kibin's Essay Examples Library content model and adjacent study tool offerings.
- Brainly: Brainly is a global homework help and study Q&A platform serving students with crowdsourced and AI-assisted answers. Comparable to Kibin Study App in the student homework/study support category with a similar freemium subscription model.
- Studypool: Studypool operates a marketplace for homework help, tutoring, and study assistance, including an editing/proofreading vertical. Closely comparable to Kibin's editor marketplace model with similar target customer (students seeking paid academic support).
- Scribbr: Scribbr provides professional academic editing and proofreading services for theses, dissertations, and journal articles. Directly competes with Kibin's Academic Editing sub-brand in the higher-ed academic editing vertical.
Broad incumbents
- Chegg: Chegg is a large public educational support platform spanning textbook rentals, tutoring, and writing help. Overlaps with Kibin across student support, editing/proofreading services, and study resources, with much broader scale and category breadth.
- Grammarly: Grammarly is a leading AI writing assistant offering editing, proofreading, and tone suggestions. Overlaps with Kibin's editing service and increasingly with study workflows; serves a much wider professional and student base.
Emerging players
- Studyfetch: Studyfetch is an AI-native study platform that generates flashcards, quizzes, and study materials from uploaded content. Closely overlaps with Kibin Study App's core AI functionality and represents a direct emerging competitor.
- PaperRater: PaperRater offers AI-powered paper grading and writing analysis, similar to Kibin's Paper Grader tool. Comparable in the AI-assisted writing feedback category, though at a smaller scale than Kibin.
- QuillBot: QuillBot provides AI paraphrasing, summarizing, and grammar checking tools used heavily by students. Overlaps with Kibin's editing services and AI-powered study tools, particularly in the writing improvement workflow.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Kibin social profiles
Digital presenceKibin financial estimates
Financial estimateRevenue estimate
Valuation estimate
Kibin leadership team
Management profileNumber of profiles
Profiles2 records
Kibin funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Kibin M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Kibin
What does Kibin do?
Kibin provides (1) the Kibin Study App, an AI-powered study platform that ingests notes, PDFs, audio files, and YouTube links and generates personalized study guides, multiple-choice quizzes, spaced-repetition flashcards, Feynman-technique explanations, and real-time mastery tracking; and (2) the Kibin Essay Editing Service, an on-demand professional editing and proofreading service backed by a 4-step-vetted global editor network covering students, academics, admissions applicants, authors/creatives, businesses, and job seekers, with per-order and subscription billing.
Is Kibin a public or private company?
Kibin is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Kibin founded?
Kibin was founded in 2011. It employs 11 to 50 people.
Where is Kibin based?
Kibin is headquartered in Berkeley, United States, in the North America region.
How does Kibin make money?
Three revenue lines are on record. Study App Pro Subscription is the primary driver. The others are essay Examples Library Subscription and per-Order Essay Editing.
Who are Kibin's main competitors?
Direct peers on record are Quizlet, Course Hero, Brainly, Studypool and Scribbr. Broad incumbents are Chegg and Grammarly. Emerging players are Studyfetch, PaperRater and QuillBot.
Does Kibin have an API?
No public API is recorded for Kibin.
What industry is Kibin in?
Kibin's product category is AI-powered educational study platform and academic editing services. Its primary akta.pro industry code is EDANADAC, Note-Taking, Reading & Comprehension Strategies. Its NAICS code is 611710 and its SIC code is 8200.