Grammarly vs Underleaf (2026) — Traffic, Pricing & Feature Comparison

Grammarly vs Underleaf (2026) — Traffic, Pricing & Feature Comparison | OpenAITools.app

Side-by-Side Telemetry & Specification Matrix

Verified 2026 monthly traffic volume, acquisition channels, pricing structure, and ecosystem footprint

Dimension / Metric	Grammarly	Underleaf
Official Domain	grammarly.com	underleaf.ai
Pricing Model	Freemium	Freemium
Pricing Details	Free plan ($0/month) includes core grammar and spelling checks, tone detection, and 100 generative AI prompts/month; Grammarly Pro costs $12/member/month billed annually ($144/year, or $30/month billed monthly) with full-sentence rewrites, plagiarism/AI detection, team style guides, and 2,000 AI prompts/month, while Enterprise offers custom pricing with unlimited AI prompts and BYOK security.	Freemium
Monthly Web Visits	59.78M59,783,496 visits/mo	227.2K227,192 visits/mo
MoM Traffic Delta	+10.50M10,499,113 visits delta	+42.8K42,754 visits delta
MoM Growth Velocity (%)	+21.3%	+23.2%
Primary Market & Share	🇺🇸 United States(51.5% share)	🇺🇸 United States(21.3% share)
Direct Visits / mo	26.56M(26,564,576)	32.6K(32,579)
Referral Visits / mo	3.79M(3,788,072)	7.8K(7,836)
Email Visits / mo	1.78M(1,781,113)	1.1K(1,149)
User Rating	5.0 / 5.0(96 reviews)	5.0 / 5.0(54 reviews)
Bookmarks	74 saves	0 saves
Supported Platforms	Website	Website
Chrome Extension Installs	—	—
Discord Community Members	—	—
Primary Categories	AI Writing Assistants AI Text Generator AI Writing AI Grammar Checker	AI Summarizer AI Writing AI PDF AI OCR

Key Features, Pros & Limitations Side-by-Side

Grammarly

Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.

Core Capabilities (5)

Ubiquitous Inline Rewriting & Tone Calibration

Works natively inside Chrome, Safari, Firefox, Edge, Windows, Mac, Google Docs, MS Office, and mobile keyboards to flag grammar mistakes, rewrite tangled sentences, and shift tone toward confident, empathetic, or executive registers.

Specialized AI Agents (AI Grader, Citation Finder & Reader Reactions)

Deploys contextual AI agents that predict how a target audience will react to a draft, locate credible supporting citations, grade essays against rubric criteria, and generate drafts using up to 2,000 monthly prompts on Pro.

Grammarly Authorship, AI Detector & Plagiarism Checker

Scans text against billions of web pages and academic databases for accidental plagiarism, detects AI-generated passages, and logs transparent document provenance via Authorship reports in Google Docs and Word.

Team Style Guides, Brand Tones & Knowledge Share

Enables teams on Pro and Enterprise plans to codify company terminology, ban deprecated jargon, enforce inclusive language, insert shared Snippets, and surface internal company definitions inline.

Strengths & Pros

+Frictionless cross-platform integration works inside virtually every browser, desktop app, email client, and mobile OS without copy-pasting into a separate chatbot.
+Consolidating Premium and Business into Grammarly Pro ($12/member/month annual) gives individuals and small teams access to style guides, analytics, and plagiarism/AI detection in one plan.
+Grammarly Authorship provides a constructive, transparent audit trail for students and writers to demonstrate human writing integrity alongside responsible AI editing.
+Mature enterprise security posture featuring BYOK encryption, Data Loss Prevention, and granular application/domain blocklists.

Limitations

–Month-to-month billing on Grammarly Pro is steep at $30/member/month compared to the $12/member/month annual commitment ($144 billed upfront).
–Core writing intelligence and style rules remain primarily optimized for English dialects (US, UK, Canadian, Australian, Indian) rather than native multilingual grammar checking.
–Aggressive inline underlines and pop-up agent cards can feel visually intrusive in dense technical documents or code-heavy web editors unless muted per domain.

Underleaf

AI-powered LaTeX conversion and academic writing assistant

Frequently Asked Questions: Grammarly vs Underleaf

2026 Verified Telemetry FAQ

Which has more traffic, Grammarly or Underleaf?

Grammarly generates more monthly web traffic with 59.78M visits/mo (59,783,496) compared to Underleaf with 227.2K visits/mo (227,192), giving Grammarly 263.14x the monthly reach (59.56M additional visits). Across acquisition channels, Grammarly records 26.56M direct visits, 3.79M referral visits, and 1.78M email visits per month, while Underleaf records 32.6K direct visits, 7.8K referral visits, and 1.1K email visits per month.

Which is growing faster in 2026?

Underleaf is growing faster on a month-over-month velocity basis in 2026. Grammarly posted a MoM growth velocity of +21.3% with a monthly traffic delta of +10.50M visits (10,499,113), whereas Underleaf posted a MoM growth velocity of +23.2% with a delta of +42.8K visits (42,754). Regionally, Grammarly's top market is United States (51.5% share) and Underleaf's top market is United States (21.3% share).

How does pricing compare between Grammarly and Underleaf?

Grammarly operates on a Freemium pricing model (Free plan ($0/month) includes core grammar and spelling checks, tone detection, and 100 generative AI prompts/month; Grammarly Pro costs $12/member/month billed annually ($144/year, or $30/month billed monthly) with full-sentence rewrites, plagiarism/AI detection, team style guides, and 2,000 AI prompts/month, while Enterprise offers custom pricing with unlimited AI prompts and BYOK security.), while Underleaf operates on a Freemium model (supported on Website). In user satisfaction and community adoption, Grammarly has 74 directory bookmarks and a 5.0/5.0 user rating, compared to 0 bookmarks and a 5.0/5.0 user rating for Underleaf.

What are the best alternatives to both Grammarly and Underleaf?

Based on category overlap and verified 2026 monthly traffic telemetry, the top alternatives to both Grammarly and Underleaf include ChatGPT (5.92B visits/mo, Freemium), DeepL (96.77M visits/mo, Freemium), Studocu Global (38.87M visits/mo, Freemium), AI Summarizer - 1 (37.71M visits/mo, Flexible), Quillbot Paraphraser (35.81M visits/mo, Freemium). Teams evaluating Grammarly vs Underleaf frequently benchmark these competitors for pricing flexibility, platform support, and workflow integration.