Grammarly
Free AI Writing Assistance
VS
Spellbook
The #1 Legal AI for transactional lawyers.
Popularity
Grammarly10,143
Spellbook7,232
Pricing
FreemiumGrammarly
FreemiumSpellbook
Features
6
Grammarly
vs
6
Spellbook
Our verdict
Grammarly is more geared toward b2c users, while Spellbook targets b2b.
Grammarly offers an API for integration into your workflows.
Detailed comparison
Criteria
Grammarly
Spellbook
Pricing
Freemium
Freemium
Plans & pricing
Free: Free, Premium: $12/mo, Business: $30/mo
Free: Free, Pro: $49/mo, Enterprise: Custom
Free trial
No
Yes
Audience
b2c
b2b
Platforms
Web, Ios, Android, Desktop, Api
Web, Desktop
API
Yes
No
Open Source
Proprietary
Proprietary
Integrations
Gmail, Microsoft outlook, Apple mail, Google chrome, Mozilla firefox, Microsoft edge, Safari, Microsoft word, Microsoft office, Slack, Discord, Google docs, Confluence, Jira, Salesforce, Sheets, Hubspot, Figma, Figjam, Asana
—
Categories
Writing, Productivity
Writing, Productivity
Popularity
Very High
Very High
Description
Grammarly offers convenient AI writing assistance to help you work smarter. Get personalized AI guidance and text generation across any app or website. It supports individuals and businesses in achieving mistake-free writing.
Spellbook is the leading AI companion for transactional lawyers, utilizing GPT-5, Claude, and other top LLMs. It allows for contract review and redlining directly within Microsoft Word, enabling you to catch risks and draft from scratch or use saved clause libraries. Get quick answers to complex legal questions and compare contracts against industry standards.
Pricing
Grammarly
Freemium
Spellbook
Freemium
Plans & pricing
Grammarly
Free: Free, Premium: $12/mo, Business: $30/mo
Spellbook
Free: Free, Pro: $49/mo, Enterprise: Custom
Free trial
Grammarly
No
Spellbook
Yes
Audience
Grammarly
b2c
Spellbook
b2b
Platforms
Grammarly
Web, Ios, Android, Desktop, Api
Spellbook
Web, Desktop
API
Grammarly
Yes
Spellbook
No
Open Source
Grammarly
Proprietary
Spellbook
Proprietary
Integrations
Grammarly
Gmail, Microsoft outlook, Apple mail, Google chrome, Mozilla firefox, Microsoft edge, Safari, Microsoft word, Microsoft office, Slack, Discord, Google docs, Confluence, Jira, Salesforce, Sheets, Hubspot, Figma, Figjam, Asana
Spellbook
—
Categories
Grammarly
Writing, Productivity
Spellbook
Writing, Productivity
Popularity
Grammarly
Very High
Spellbook
Very High
Description
Grammarly
Grammarly offers convenient AI writing assistance to help you work smarter. Get personalized AI guidance and text generation across any app or website. It supports individuals and businesses in achieving mistake-free writing.
Spellbook
Spellbook is the leading AI companion for transactional lawyers, utilizing GPT-5, Claude, and other top LLMs. It allows for contract review and redlining directly within Microsoft Word, enabling you to catch risks and draft from scratch or use saved clause libraries. Get quick answers to complex legal questions and compare contracts against industry standards.
Features
Grammarly
AI assistant
AI text generation
Tone detection
Mistake-free writing support
Cross-platform availability
Trust & security
Spellbook
AI-powered contract review and redlining
Drafting from scratch or clause libraries
In-document AI chat for quick answers
Contract benchmarking against industry standards
Multi-document workflows
Clause Library
Key differentiators
Grammarly
- Ubiquitous integration across 1M+ apps
- Comprehensive AI writing assistance
- User-centric design & continuous improvement
- Multilingual support
- AI-powered communication platform
Spellbook
- AI legal review directly in MS Word
- Trained on vast legal databases
- Automates drafting & risk detection
Other comparisons
FAQ: Grammarly vs Spellbook
Grammarly: Free AI Writing Assistance. Spellbook: The #1 Legal AI for transactional lawyers.. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. Grammarly is freemium and Spellbook is freemium.
The best choice between Grammarly and Spellbook depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
Grammarly is primarily designed for individuals, while Spellbook is built for individuals.
Grammarly offers: AI assistant, AI text generation, Tone detection, Mistake-free writing support. Spellbook offers: AI-powered contract review and redlining, Drafting from scratch or clause libraries, In-document AI chat for quick answers, Contract benchmarking against industry standards.
Based on our data, Grammarly currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.
Spellbook offers a free trial, but Grammarly does not.
Grammarly offers 20 integrations (gmail, microsoft outlook, apple mail, google chrome, mozilla firefox...) compared to 0 for Spellbook.
Grammarly is available on Web, Ios, Android, Desktop, Api. Spellbook is available on Web, Desktop.
