Grammarly
Free AI Writing Assistance
VS
Opal
The #1 AI powered study tool
Popularity
Grammarly10,143
Opal7,189
Pricing
FreemiumGrammarly
FreemiumOpal
Features
6
Grammarly
vs
5
Opal
Our verdict
Grammarly is more geared toward b2c users, while Opal targets b2b.
Grammarly offers an API for integration into your workflows.
Detailed comparison
Criteria
Grammarly
Opal
Pricing
Freemium
Freemium
Plans & pricing
Free: Free, Premium: $12/mo, Business: $30/mo
Free: Free, Opal+: $5/mo
Free trial
No
No
Audience
b2c
b2b
Platforms
Web, Ios, Android, Desktop, Api
Web
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
Openai
Categories
Writing, Productivity
Education
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.
Opal is the #1 AI powered study tool designed to help you learn faster and remember more. It acts like a personal tutor in your pocket, transforming your documents and knowledge into engaging study materials and quizzes. Try it now for free!
Pricing
Grammarly
Freemium
Opal
Freemium
Plans & pricing
Grammarly
Free: Free, Premium: $12/mo, Business: $30/mo
Opal
Free: Free, Opal+: $5/mo
Free trial
Grammarly
No
Opal
No
Audience
Grammarly
b2c
Opal
b2b
Platforms
Grammarly
Web, Ios, Android, Desktop, Api
Opal
Web
API
Grammarly
Yes
Opal
No
Open Source
Grammarly
Proprietary
Opal
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
Opal
Openai
Categories
Grammarly
Writing, Productivity
Opal
Education
Popularity
Grammarly
Very High
Opal
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.
Opal
Opal is the #1 AI powered study tool designed to help you learn faster and remember more. It acts like a personal tutor in your pocket, transforming your documents and knowledge into engaging study materials and quizzes. Try it now for free!
Features
Grammarly
AI assistant
AI text generation
Tone detection
Mistake-free writing support
Cross-platform availability
Trust & security
Opal
AI-Powered Study Assistant
Personalized Learning & Repetition
Document-to-Quiz Conversion
Knowledge Training
Learning Acceleration
Key differentiators
Grammarly
- Ubiquitous integration across 1M+ apps
- Comprehensive AI writing assistance
- User-centric design & continuous improvement
- Multilingual support
- AI-powered communication platform
Opal
- AI-powered study assistant
- Document-to-quiz conversion
- Personalized learning & repetition
- Knowledge training
- Learning acceleration
Other comparisons
FAQ: Grammarly vs Opal
Grammarly: Free AI Writing Assistance. Opal: The #1 AI powered study tool. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. Grammarly is freemium and Opal is freemium.
The best choice between Grammarly and Opal 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 Opal is built for individuals.
Grammarly offers: AI assistant, AI text generation, Tone detection, Mistake-free writing support. Opal offers: AI-Powered Study Assistant, Personalized Learning & Repetition, Document-to-Quiz Conversion, Knowledge Training.
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.
Neither tool currently offers a free trial.
Grammarly offers 20 integrations (gmail, microsoft outlook, apple mail, google chrome, mozilla firefox...) compared to 1 for Opal.
Grammarly is available on Web, Ios, Android, Desktop, Api. Opal is available on Web.