HyperWrite vs ProWritingAid

Tagline

AI writing assistant with autocomplete, web search, citations, and task automation browser agents.

The Storyteller's Toolkit: A grammar checker, style editor, and writing mentor in one package.

Category

Pricing

Rating

Platforms

API

Open source

Description

HyperWrite is an advanced AI writing assistant and browser-integrated agent developed by OthersideAI. It offers hundreds of contextual tools for editing, content generation, and academic research. With its custom Chrome extension, HyperWrite enables autocomplete on any website, citation-backed scholarly searches, and autonomous task execution like spreadsheet handling, email organization, and browser-driven operations.

ProWritingAid is a comprehensive writing assistant and developmental editor designed for storytellers and writers. It offers grammar checking, style editing, paraphrasing, and deep manuscript analysis. The platform helps writers refine their plots, bring characters to life, get virtual beta feedback, and edit chapters natively inside popular writing applications.

Key features

• Autocomplete
• Scholar AI
• Summarizer
• Rewrite Content
• AI Speech Writer
• Email Responder
• Explain Like I'm Five
• AI Text Editor
• Custom AI Tool Builder
• Chrome Extension Integration
• Autonomous Browser Agent

• Grammar Checker
• Paraphrasing Tool
• Manuscript Analysis
• Plot Analysis
• Character Analysis
• Virtual Beta Reader
• Chapter Critique
• Marketability Analysis
• Story Canvas
• Write Mode
• Sparks Content Suggestions
• 25+ Writing Reports

Pros

• Provides a free starter account with basic features and limited monthly credits.
• Offers a Chrome Extension to leverage the AI writing assistant and automation agent on any website.
• Integrates citation-backed scholarly search leveraging millions of academic articles.
• Provides hundreds of predefined AI tools tailored to different writing, business, and creative needs.
• Enables users to create and scale custom AI tools optimized for their exact workflows.
• Features an autonomous AI agent capable of browsing to organize Gmail, draft responses, and complete web tasks.
• Offers a distraction-free, focused document workspace inside the browser for long-form writing.
• Promo code TRYHYPERWRITE is available to get 50% off the first paid month.

• Integrates directly into favorite writing apps like Microsoft Word, Google Docs, and Scrivener.
• Protects your privacy with bank-level security and guarantees never to use your text to train its algorithms.
• Generates over 25+ comprehensive reports analyzing cliches, overused words, structure, and pacing.
• Capable of analyzing long-form manuscripts of up to 300,000 words in just minutes.
• Features a Virtual Beta Reader that provides modeled first-person reader reactions and emotional high/low maps.
• Analyzes story arcs and plot holes automatically against standard structures like the Three Act Structure.
• Offers Sparks Edit and Sparks Inspire tools to help rewrite passages and break through writer's block.
• Allows adding new dictionary terms and creating customizable, personal grammar and style rules.

Cons

• No public developer API or API documentation was found on the website.
• No dedicated native desktop applications (for macOS, Windows, or Linux) are listed.
• Free starter accounts are highly restricted with limited monthly credits and basic AI models.
• Users are advised to use external plagiarism checkers prior to publishing generated content to ensure originality.
• No explicit references to SOC2, ISO, or HIPAA compliance security standards are provided.
• Users are cautioned not to include sensitive privacy information in tasks as actions can be analyzed to teach the assistant.

• The free plan is subject to a strict 500 word count limit.
• Refunds are not available under any circumstances for monthly paid subscription plans.
• Refund requests for yearly or lifetime paid plans must be made within a tight three-day window of purchase.
• Purchased Story Credits are completely nonrefundable.
• No developer API documentation or pricing is listed on the main informational pages.
• No references to dedicated iOS or Android mobile applications are listed on the main site.

Pricing plans

• PremiumUSD19.99/month
  • • Access the world's best AI writer.
  • • Produce thousands of words of fantastic content.
  • • 3 Custom Personas
• UltraUSD44.99/month
  • • Supercharge your AI workflows.
  • • 10 Custom Personas
• PremiumUSD16/month
  • • Access the world's best AI writer.
  • • 250 AI Messages per Month
  • • 3 Custom Personas
• UltraUSD29/month
  • • Supercharge your AI workflows.
  • • 10 Custom Personas
• Free ToolsUSD0
  • • Free AI Writer
  • • Free AI Rewriter
  • • Free AI Summarizer

• FreeGBP0
  • • Grammar, spelling, punctuation
  • • Word Explorer & Thesaurus
  • • Document type setting
  • • 100% data security and privacy
• PremiumGBP30/month
  • • Everything in Free
  • • Unlimited word count
  • • Unlimited Rephrases
  • • Unlimited report runs
• PremiumGBP10/month
  • • Everything in Free
  • • Unlimited word count
  • • Unlimited Rephrases
  • • Unlimited report runs
• PremiumGBP399/one_time
  • • Everything in Free
  • • Unlimited word count
  • • Unlimited Rephrases
  • • Unlimited report runs
• Premium ProGBP36/month
  • • Everything in Premium
  • • Advanced style improvements
  • • Custom style guide
  • • Discount on Story Credits
• Premium ProGBP12/month
  • • Everything in Premium
  • • Advanced style improvements
  • • Custom style guide
  • • Discount on Story Credits
• Premium ProGBP699/one_time
  • • Everything in Premium
  • • Advanced style improvements
  • • Custom style guide
  • • Discount on Story Credits

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