What Linguix does

Linguix (legally Textly, Inc.) is an AI-powered writing assistance platform that provides multilingual grammar checking, spell checking, style suggestions, text rewriting, and content quality scoring across seven languages: English, French, German, Spanish, Portuguese, Italian, and Polish. The company serves both individual users and business teams through a browser extension compatible with Chrome, Edge, Firefox, Opera, Safari, and productivity platforms such as Miro, Figma, and Google Workspace, plus a web editor and Android keyboard app. Named customers and testimonials are drawn primarily from SMBs and individual professionals (e.g., Owl SEM, Wicked Marvelous, Influgrow) along with a horizontal mix of sales, marketing, customer support, and HR teams.

The underlying technology combines natural language processing for grammar and spell detection with generative AI capabilities — including GPT-4 integration — for rewriting, tone analysis, and text autocomplete. Linguix operates a proprietary dataset of 2,420+ categorized common English mistakes and uses AI to detect language automatically. Beyond the core writing assistant, the company offers a separate shortcut-automation product (Linguix Turbo), a Grammar Check REST API and JavaScript/TypeScript SDK, a White Label solution for partners, and free tools including an AI Content Detector, Essay Checker, and Paraphraser.

The business model is freemium subscription: a free tier with basic grammar checking, a Premium individual plan ($10/month or $5/month on annual billing), and a Business per-seat plan ($10/month or $5/month annual, minimum 2 seats) with centralized billing, team analytics, and style guides. Distribution is product-led through self-serve browser extension installs and marketplace listings (Featured App on Chrome Web Store and Edge Store, #1 writing assistant on Product Hunt, top proofreading tool on G2 and Capterra), supplemented by direct sales for enterprise plans and an affiliate program. The company is headquartered in Charlotte, NC under its parent entity Textly, Inc., and operates with 11–50 employees.

Name

Linguix

Legal name

Textly, Inc.

Website

https://linguix.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

Linguix is an AI-powered multilingual writing assistant that provides grammar checking, rewriting, and content scoring across seven languages via a cross-browser extension, web editor, and team plan, serving individual professionals and SMB teams globally.

Ownership category

akta.pro rank

Product category

Writing Assistance Software

NAICS

Language Schools (61163), Language Schools (611630)

akta.pro primary industry

Bilingual/ESL/ELL & Multilingual Learner Support Tools (EDAFAOAK)

akta.pro secondary industries

Grammar, Vocabulary & Pronunciation Materials (EDAGAHAB), AI-Powered Language Tutors, Chatbots & Speaking Practice Tools (EDAFAOAC)

Keywords

• AI writing assistant
• Grammar checker software
• Multilingual spell check
• Browser extension productivity
• Team writing analytics

Headquarters

HQ city

Miami

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

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

Revenue model

1. Premium Individual Subscription: Freemium model with a free tier offering basic grammar checking and limited features. Premium tier ($10/month or $5/month annually) unlocks advanced AI features including GPT-4 copilot, rewriter, tone analyzer, text autocomplete, and full functionality across all supported websites.
2. Subscription Recurring: Automatically recurring payments for periodic charges (monthly or annual billing). Subscription continues unless cancelled before renewal.
3. Linguix Business Team Plan: Business plan at $10/month per member (monthly) or $5/month per member (yearly), starting at 2 seats. Includes all PRO features plus centralized billing, team statistics, monitoring, and integrations. Individual accounts per team member with admin panel.
4. Affiliate Program: Commission-based affiliate program where partners earn commissions by referring new Linguix users. Supports the customer acquisition motion.
5. Linguix API / SDK Licensing: Developer API and SDK for embedding Linguix's writing assistance into third-party applications. Revenue generated through API usage and SDK integration licensing.

Pricing tiers

Go-to-market motion5 records

Distribution channels6 records

Marketing channels5 records

Core offering

Linguix develops and sells an AI-powered writing assistant that checks grammar, spelling, punctuation, and style across 7 languages (English, French, German, Spanish, Portuguese, Italian, and Polish). The product is delivered as a browser extension, web editor, and REST API/SDK, with a Premium tier for individuals and a per-seat Linguix Business tier for teams. A separate Linguix Turbo product automates repetitive writing through intelligent shortcut expansion, and a White Label offering packages the underlying technology for partner rebranding.

Product overview

Linguix is an AI-powered writing assistance platform offering a browser extension, web editor, and suite of writing tools. The core Linguix Writing Assistant provides multilingual grammar checking across 7 languages (English, French, German, Spanish, Portuguese, Italian, Polish) using NLP technology. The product portfolio includes: Linguix Browser Extension (works on Gmail, Google Docs, ChatGPT, Canva, and other sites), Linguix Web Editor (for long-form content editing), Text Rewriter (AI-powered sentence rewriting), Content Quality Score (text analysis scoring), and Shortcuts (text expansion automation). Linguix Business adds team management, centralized billing, and analytics features with integrations to LinkedIn, Google Docs, Miro, Figma, and MS Office. Linguix Turbo is a separate product focused on shortcut automation. The Grammar Check API and Linguix SDK provide developer access to these capabilities. Free tools include AI Content Detector, Essay Checker, Paraphraser, and language-specific grammar checkers.

Differentiator

Problem solved

Functional benefit

Brands

• Linguix Business: Team plan for enterprise customers with team management features, style guides, centralized billing, and statistics dashboard for tracking writing quality across organizations.
• Linguix PRO
• Linguix Turbo

Products and services

• Linguix Writing Assistant AI-powered grammar checker and writing assistant available as a browser extension and web application, providing real-time grammar, punctuation, and spell checking with multilingual support across 7 languages (English, French, German, Spanish, Portuguese, Italian, Polish). Targeted at individuals and teams that need cross-website writing assistance.
• Linguix Browser Extension Browser extension available for Chrome, Edge, Firefox, Opera, Safari, Miro, Figma, and Google Workspace that highlights grammar, spelling, and style issues and works across Gmail, Google Docs, Open.ai, Canva, and millions of other websites. Targeted at individual users and teams that need writing assistance embedded in their existing web workflows.
• Linguix Web Editor Online editor for long-form content writing, grammar checking, paraphrasing, and AI auto-completion across the 7 supported languages. Targeted at writers, marketers, students, and team members editing documents in a dedicated workspace.
• Linguix Business Team-focused AI writing solution with centralized billing, team analytics, performance statistics, error counts, readability scores, and email reporting. Includes all Premium features (GPT-4 copilot, rewriter, tone analyzer, text autocomplete) plus admin panel and integrations with LinkedIn, Google Docs, Miro, Figma, and MS Office. Sold at $10/month per member (monthly) or $5/month per member (annual) with a 2-seat minimum, targeting sales, marketing, customer support, and HR teams.
• Linguix Turbo Separate AI writing assistant product focused on shortcut automation that allows users to create shortcuts with grammar checking and rewriting for clarity, supporting links, lists, and formatting. Operates from turbo.linguix.com with its own PRO subscription. Targeted at writers and teams that want to compress repetitive email and social-media composition into one-word command expansions.
• Linguix SDK JavaScript/TypeScript SDK enabling developers to integrate Linguix's grammar checking capabilities into custom applications, with documentation, styling guides, and Next.js framework support. Targeted at developers and product teams embedding writing assistance in third-party apps.
• Grammar Check API REST API providing programmatic access to Linguix's grammar and writing checking capabilities for integration into third-party applications and services, with documentation and a proxy server option for developers. Targeted at developers and partner platforms wanting to embed grammar checking via API.
• Linguix White Label White-label version of the Linguix technology available for partners to rebrand and integrate into their own platforms. Targeted at partners and resellers wanting to offer AI grammar checking under their own brand.

Quantifiable outcome

• Shortcuts reduce time spent on email and social media writing by 90%
• +1 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

AI capability4 records

Feature9 records

Partnerships

Three partnerships are on record, tiered core.

• Google CloudcoreTechnology or IntegrationGoogle Cloud is used as a hosting and infrastructure provider for Linguix's service, enabling reliable cloud-based delivery of the grammar checking and writing assistance platform.
• StripecoreTechnology or IntegrationStripe is used as the primary payment processing provider for handling subscription billing, including monthly and annual plan charges for Premium and Business accounts.
• PayPalcoreTechnology or IntegrationPayPal is used as an alternative payment processing provider alongside Stripe for handling subscription payments for Premium and Business plans.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Grammarly: Grammarly is the dominant AI-powered grammar and writing assistant offering a browser extension, desktop apps, and team/enterprise plans. It competes head-to-head with Linguix for the same individual and business users on email, documents, and social platforms. Linguix's own customer testimonials explicitly compare against Grammarly.
• ProWritingAid: ProWritingAid is an AI-assisted grammar, style, and editing tool targeted at writers, professionals, and students. It competes with Linguix's core browser/web-editor experience, particularly for long-form and editorial use cases.
• LanguageTool: LanguageTool is a multilingual grammar and style checker supporting 30+ languages, available as a browser extension and API. Its multilingual depth and developer/API offering make it one of the closest direct competitors to Linguix, especially in non-English markets.
• QuillBot: QuillBot offers paraphrasing, grammar checking, and summarization tools primarily used by students and writers. It is a direct peer to Linguix in the AI writing-assistant category, with overlapping browser-extension and freemium economics.
• Wordtune: Wordtune is an AI-powered rewriting and tone-adjustment assistant with a browser extension and team features. It directly competes with Linguix's rewriter/tone-analyzer capabilities and enterprise go-to-market.

Emerging players

• Sapling.ai: Sapling is an AI writing assistant focused on customer support and sales communications, with API/SDK distribution. It overlaps with Linguix's customer-support use case and team-statistics positioning, and competes in the API-embedded writing space.
• Hemingway Editor: Hemingway Editor focuses on readability and style improvement for prose. It overlaps with Linguix's Content Quality Score and tone-clarity features, particularly for editorial and long-form writing users.
• Trinka AI: Trinka is an AI grammar checker focused on academic and technical writing. It is comparable to Linguix on grammar/style correction but with a deeper niche in academic English, a segment Linguix also serves via its Essay Checker.
• Writefull: Writefull is an AI writing assistant tailored to academic and scientific writing, with sentence-level feedback and paraphrasing. It is an adjacent peer to Linguix given Linguix's Essay Checker and content-quality-score features targeting student/professional users.

Broad incumbents

• Microsoft Editor: Microsoft Editor is a writing assistant bundled into Microsoft 365/Edge at no incremental cost. As a free incumbent offering for the same enterprise user base, it represents a major pricing-disruption threat to Linguix's premium tier.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/LinguixAI
• Facebookfacebook.com/linguix
• LinkedInlinkedin.com/company/linguix-grammar
• Instagraminstagram.com/linguixai

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds1 record

Investors4 records

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 Linguix