Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. Pie records 11,551 monthly visits with +21.8% growth and Contact for Pricing 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 Pie
Grammarly has 58,867,412 monthly visits, while Pie has 11,551. 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.
Pie
Agentic QA that tests every change like a real user and opens the fix PR
Vision-first autonomous discovery
Pie maps your real user flows from a URL or build and finds elements by looking at the screen, so there are no selectors to maintain.
Tests every pull request
Each PR is read and exercised against the running app, so regressions are caught before they reach users.
Self-healing coverage
Tests survive redesigns and deep links because they rely on how the interface looks and behaves, not on brittle CSS or accessibility paths.
Automatic fix pull requests
When Pie confirms a bug, it drafts a fix PR with the root cause and the applied change, ready for review and merge.
Strengths & Pros
+No test scripts or selectors to write or maintain
+Finds functional and usability bugs that assertion-based tests pass
+Drafts fix pull requests instead of only filing bug reports
+Covers iOS, Android and web, including cross-platform frameworks
Limitations
–No public self-serve pricing; sales conversation required
–Enterprise-oriented, so it may be heavy for very small teams
–Best results depend on granting repository and app access
