Notion vs Grammarly (2026): Trust Score, TCO & Integration Compared
⚡ Quick Verdict
Notion is the stronger choice if you prioritize trust, security, and data privacy (Trust Score: 6.8/10 vs 6.5/10). For deeper integration ecosystems and API flexibility, Grammarly has the edge (Integration Score: 7/10).
📊 Comparison Overview
Notion and Grammarly serve overlapping but distinct needs in the Productivity Software space. Notion achieves a Trust Score of 6.8/10, while Grammarly scores 6.5/10 — a difference of 0.3 points. On integration depth, Grammarly leads with 7/10 vs 5.5/10 (difference: 1.5 points). When it comes to total cost of ownership, Notion is more budget-friendly at $120/year vs $144/year per seat. Notion is the recommended choice if trust, security, and vendor reputation are your primary concerns. However, the right choice depends on your specific team size, existing tool ecosystem, and budget constraints.
Side-by-Side Score Comparison
| Metric | Notion | Grammarly |
|---|---|---|
| Trust Score | 6.8/10 🏆 | 6.5/10 |
| Integration Score | 5.5/10 | 7/10 🏆 |
| Est. TCO / yr | $120 🏆 | $144 |
| Price | $10/subscription | $12/subscription |
| Category | Productivity Software | Writing |
Feature Comparison
Notion Features
- Block Editor
- Databases
- Templates
- Wiki
- AI Assistant
- Connected Docs
Grammarly Features
- Grammar Check
- Tone Detection
- Plagiarism Check
- Generative AI
- Full-Width Rewrites
Best For
Notion
Internal knowledge basesStartup documentationPersonal dashboards
Notion is an all-in-one workspace that blends note-taking, project management, databases, and collaboration into a single platform. Its block-based editor allows unprecedented flexibility, letting you... Read full review →
Grammarly
Professional communicationAcademic writingNon-native English speakers
Grammarly is an AI-powered writing assistant that checks grammar, spelling, punctuation, clarity, engagement, and delivery. It offers a browser extension that works across websites, a desktop app, and... Read full review →
Verdict
Notion wins on trust, security, and data practices with a Trust Score of 6.8/10. Grammarly wins on integration depth and ecosystem connectivity. For budget-conscious teams, Notion offers the lower total cost of ownership at $120/year vs $144/year.
The right choice depends on your team's priorities. If you value privacy, ethical AI, and vendor transparency, choose Notion. If you need deep API integrations and a large app ecosystem, choose Grammarly.