Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. PinMy records 2,020 monthly visits with -21.7% growth and Freemium, Free Trial, Paid 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 PinMy
Grammarly has 58,867,412 monthly visits, while PinMy has 2,020. 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.
PinMy
Pin site defects, voice notes and photos straight onto plans, then export the report
Pins on plans, photos, videos and 3D IFC models
Drop a pin on a PDF plan, a site photo, a walkthrough video moment or an auto-converted lightweight 3D IFC model, and attach text, voice, photo or video context to it.
Voice notes with automatic multi-language transcription
Speak instead of typing and the note is transcribed and made searchable, so gloves-on site capture stays fast. Voice comment length depends on plan (30s free, 180s Premium).
PDF reports exported directly from a file
Item reports export every pin and every comment straight from the file with no assignment or board setup, plus status, filtered, per-assignee and daily-activity report modes. Rendered on your own device.
BCF 2.1 in and out for BIM workflows
Exchange IFC issues with Revit, Navisworks or Solibri as BCF 2.1 files, with camera viewpoints and snapshots, IFC GUID topic matching and a wrong-model guard.
Strengths & Pros
+Genuinely free forever plan with no credit card and no expiring trial
+Same capture workflow works across PDF plans, photos, videos and 3D IFC models
+Reports export from the file itself, so unorganised site walks still produce a document
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Voice-first and glove-friendly design built for dusty, low-signal site conditions
Limitations
–PDF report layouts and BCF import/export are still labelled beta
–No folder-level or multi-file reports, and no custom templates, e-signature or client logo yet
–Premium net price excludes VAT, which varies by billing channel and country
