Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. Zap records 0 monthly visits with — growth and Free pricing.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
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.
Frequently Asked Questions: Grammarly vs Zap
Grammarly has 58,867,412 monthly visits, while Zap has 0. Traffic estimates describe audience size, not product quality.
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.
Zap
The fastest way to jot a note without leaving the page
Popup scratch notes
A lightweight popup opens from the toolbar so you can jot something down and get straight back to what you were doing.
Local, on-device storage
All notes stay in local browser storage on your device; the developer discloses no data collection and no third-party selling.
Deliberately minimal interface
Zap is a single-purpose extension: no folders, no clutter, no dashboards, just the note in front of you.
Completely free
The listing states Zap is completely free, with no subscriptions, trials or paywalls.
Strengths & Pros
+Completely free with no subscription or paywall
+Extremely fast to open and use for short notes
+Local, on-device storage with no data collection disclosed
+Tiny install size that does not weigh down the browser
+Clean, distraction-free interface
Limitations
–Very small install base, so community support and updates are limited
–Last listed update was October 2024
–No account sync; notes live only on the device's browser profile
–Simple feature set compared with full-featured note apps
