Letterly App vs Grammarly

Side-by-side comparison · Updated April 2026

 Letterly AppLetterly AppGrammarlyGrammarly
DescriptionLetterly is an innovative app designed in collaboration with linguists to streamline communication by making letter writing simpler and more efficient. Available on multiple platforms, you can easily download it from the App Store or Google Play. The app values user privacy, utilizing cookies to enhance the browsing experience, provide personalized ads, and analyze site traffic, with detailed options for consent and cookie management. Connect with Letterly through email, Facebook, Discord, and X (Twitter) to stay updated and engaged.Grammarly is an AI-powered writing assistant designed to enhance writing by offering suggestions for grammar, style, tone, and clarity. Trusted globally by over 70,000 teams and 30 million individuals, it integrates seamlessly with platforms like Slack, Outlook, Notion, and Zendesk. Grammarly ensures data privacy and security, not selling or sharing user data. Organizations witness substantial ROI through productivity boosts, saving costs, and reducing editing hours.
CategoryCommunicationApplicationAI Assistant
Rating
5.0 (1)
No reviews
PricingN/AN/A
Starting PriceN/AN/A
Use Cases
  • Frequent letter writers
  • Privacy-conscious users
  • Mobile users
  • Social media users
  • Email writers
  • Professional teams
  • Privacy-focused users
  • Organizations
Tags
letter writingcommunicationstreamline communicationuser privacycookies
AI writing assistantgrammar checkerstyle guidetone detectorclarity improvement
Features
Co-created with linguists
Available on multiple platforms
Privacy and cookie management
Connect through various social media channels
Expert-designed templates
Detailed cookie customization options
Uses necessary, functional, analytics, performance, and advertisement cookies
Enhances browsing with specialized cookies
Free trial available
Simplifies letter writing process
AI-powered writing assistant
Grammar, style, tone, and clarity suggestions
Integration with Slack, Outlook, Notion, and Zendesk
Data privacy and security prioritization
Available on Windows, Mac, iOS, Android, and web browsers
Significant ROI for enterprises
Personalized writing suggestions
Support for style guide adherence
Trusted by over 70,000 teams and 30 million users
Testimonials from professionals highlighting productivity improvements
 View Letterly AppView Grammarly

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