What Wordvice.ai Proofreader does

Wordvice.ai Proofreader is an AI-powered writing assistance platform developed by Wordvice Co., Ltd. (주)워드바이스), a private company headquartered in Seoul, South Korea, and founded in 2013. The platform offers a comprehensive suite of writing and research tools — AI Proofreader, Grammar Checker, Paraphraser, Humanizer, Translator, Summarizer, Plagiarism Checker, AI Detector, ChatPDF, and Citation Generator — accessible via web (wordvice.ai), a Google Chrome extension, and an MS Word add-in distributed through Microsoft AppSource. The underlying stack is built on large language models and natural language processing, with the core proofreader fine-tuned on millions of academic documents to deliver publication-grade revisions comparable to professional editors, and supports 11 interface languages plus 47+ translation languages.

The platform serves a stated base of 1.5+ million writers across 25,000 institutions globally, with primary segments including researchers and academics preparing journal submissions, students producing assignments and applications, professionals and enterprises managing business communications, and authors refining creative work. The four-tier editing ecosystem — free AI tools, affordable human proofreading ($0.01/word), expert subject-matter editing ($0.044/word), and a full document editor — addresses the full lifecycle from draft to publication.

Monetization is anchored in a freemium SaaS model: Basic (free, 5,000 words/month), Premium ($9.95/month annually, 1,000,000 words/month), Premium PRO ($26.95/month annual with credits), and Team Plans ($8.45–$9.95/seat/month for 3–50+ seats with centralized billing). Go-to-market is product-led with community-led reinforcement, relying on organic discovery, content/SEO, institutional logo trust signals (MIT, Harvard, Seoul National, Tokyo, Fudan, Tsinghua, and others), and an affiliate program rather than direct outbound sales. The company is led by founder-CEO Lee Jong-hwan (이종환) and remains privately held with no disclosed institutional funding beyond a single 2022 round.

Name

Wordvice.ai Proofreader

Legal name

(주)워드바이스

Website

https://wordvice.ai

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Wordvice.ai Proofreader is an AI-powered writing assistance platform offering proofreading, paraphrasing, plagiarism checking, translation, and AI-detection tools, serving 1.5M+ writers across 25,000 institutions globally via a freemium SaaS model targeted at researchers, students, and professionals.

Ownership category

akta.pro rank

Product category

AI Writing Assistance Software

NAICS

Software Publishers (513210), Educational Support Services (611710)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

AI-Generated Content Detection & Authorship Verification (EDAFALAB)

akta.pro secondary industries

Content Authenticity, Watermarking & Deepfake Detection (HDAAAKAK), Responsible AI, Security & Privacy Platforms (Safety, Guardrails, PII) (HDAEANAG), Responsible AI, AI Governance & Compliance Services (BPAEAHAJ)

Keywords

• AI writing assistance
• Academic proofreading software
• Grammar checker tools
• AI plagiarism detection
• Multilingual translation software

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Freemium SaaS Subscription: Wordvice AI operates a freemium model. The Basic plan is free with limited features (5,000 words/month, 2 proofreading modes, 500 words/submission). Premium is priced at $9.95/month (billed annually) or $19.95/month (billed monthly), offering 1,000,000 words/month, all premium modes, and advanced features. Premium PRO at $26.95/month (annual only) adds additional credits. This is the primary revenue driver.
2. Team Plan Subscriptions: Team plans are sold per seat with volume discounts: 3-9 seats at $9.95/seat/month, 10-49 seats at $8.95/seat/month, 50+ seats at $8.45/seat/month. Annual billing only. Includes centralized billing, account roles and permissions, and access to all Premium features for all members. Provides recurring revenue with land-and-expand dynamics as teams grow.
3. Professional Human Editing Services: Wordvice offers professional English editing and proofreading services by human editors with advanced degrees (Master's and PhDs). Services include Academic Editing, Admissions Editing, Business Editing, and Writer Editing. Human proofreading is priced from $0.01/word, and expert editing from $0.044/word. This represents a complementary service stream linked to the AI platform but billed separately through wordvice.com.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels7 records

Core offering

Wordvice.ai Proofreader is an AI-powered writing assistance platform that provides instant grammar correction, proofreading, paraphrasing, translation, summarization, plagiarism checking, AI-content detection, citation generation, and PDF analysis through a web app, Chrome extension, and MS Word add-in. The platform is offered on a freemium SaaS model and is used by 1.5 million+ writers across 25,000 academic and professional institutions globally. The company also bundles professional human proofreading and expert editing services as a complementary offering to the AI tools.

Product overview

Wordvice AI Proofreader is an AI-powered writing assistance platform offering a comprehensive suite of writing and research tools. The core platform consists of writing tools including AI Proofreader, AI Grammar Checker, AI Paraphraser, AI Humanizer, AI Translator, and AI Summarizer, complemented by research tools such as ChatPDF, AI Plagiarism Checker, AI Detector, and Citation Generator. These tools are available individually, bundled in the AI Document Editor, or as browser/Office extensions. The company operates on a freemium model with Basic (free), Premium ($9.95/month), Premium PRO, and Team subscription tiers, while also offering human proofreading and expert editing services as premium add-ons.

Differentiator

Problem solved

Functional benefit

Products and services

• AI Proofreader

Quantifiable outcome

• Wordvice AI is trained on millions of academic documents and applies nuanced revisions comparable to professional proofreaders
• +4 more outcomes

Named customers21 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability13 records

Feature10 records

Scale indicators4 records

Recent moves1 record

Expansion highlights6 records

Direct peers

• QuillBot: QuillBot is an AI paraphrasing and writing tool acquired by Learneo (parent of Chegg). It overlaps directly with Wordvice's AI Paraphraser, Summarizer, Grammar Checker, and AI Detector, and similarly targets students, researchers, and professionals with a freemium SaaS model.
• Turnitin: Turnitin is the dominant academic plagiarism and AI writing detection platform, used widely by universities globally. It overlaps with Wordvice AI's Plagiarism Checker and AI Detector, with much deeper institutional penetration and an authoritative position in academic integrity.
• ProWritingAid: ProWritingAid offers grammar checking, style editing, and writing reports for authors, students, and professionals. It overlaps with Wordvice AI's proofreader and grammar checker in functionality and uses a similar freemium SaaS model targeting academic and professional writers.
• Grammarly: Grammarly is the dominant AI writing assistant, offering grammar checking, paraphrasing, tone adjustment, and plagiarism detection across web, desktop, and mobile. It is the closest direct competitor to Wordvice AI's proofreader and grammar checker, with substantially greater brand recognition and a freemium model targeting the same individual and enterprise writers.
• Jenni AI: Jenni AI is an AI writing assistant specialized for academic and research use cases, including citation support, paraphrasing, and AI detection bypass. It is a direct academic-writing peer to Wordvice AI, targeting graduate students and researchers with similar features.
• Wordtune: Wordtune (now part of AI21 Labs) is an AI reading and writing companion offering paraphrasing, summarization, and tone adjustment. It directly competes with Wordvice AI's Paraphraser, Summarizer, and AI Proofreader for the same professional and student segments.
• Trinka AI: Trinka is an AI grammar checker and language enhancement tool specifically built for academic and technical writing. It is a direct academic-writing peer to Wordvice AI, targeting researchers with similar formal-tone editing and publication-ready output.
• LanguageTool: LanguageTool is a multilingual grammar and style checker supporting 30+ languages. It competes directly with Wordvice AI's multilingual grammar checker and paraphraser, with similar freemium positioning and a focus on non-native English writers.
• PaperRater: PaperRater is an AI-powered grammar checker, plagiarism detector, and writing evaluator aimed at students and educators. It overlaps with Wordvice AI's grammar, plagiarism, and proofreading capabilities and addresses the same academic-writing customer base.

Emerging players

• Jasper: Jasper is an enterprise-focused AI content generation and writing platform. While primarily targeting marketing copy rather than academic writing, it competes for the same LLM-based writing assistance category and includes paraphrasing, summarization, and tone features that overlap with Wordvice's Professional segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/WordviceEditing
• Facebookfacebook.com/WordviceEditing
• LinkedInlinkedin.com/company/wordvice

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Wordvice.ai Proofreader