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PaperCheck vs CapyBro

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PaperCheck compared with CapyBro
DetailPaperCheck logo PaperCheckCapyBro logo CapyBro
What it doesAI Paper Supervisor for Academic Writing AI text improvement in one click via global hotkey for Windows
StageNot given Not given
FoundedNot given Not given
Based inCH UA
Pricing modelFreemium Freemium
PricingFree tier available; Plus and Ultimate paid plans with credit system (1 credit per 100 words). One-time packages and monthly subscriptions available with money-back guarantee within 14 days. Free version: $0 forever. Pro version: $9 one-time payment (no subscription).
Key features
  • Paper analysis with scoring across multiple dimensions
  • Plagiarism detection and AI-written text identification
  • Citation style and consistency checking
  • Logical error and argumentation analysis
  • Grammar, spelling and inclusive language errors
  • Bibliography verification against trusted databases
  • Custom requirements upload for university-specific guidelines
  • Prioritized to-do list for revisions
  • Defense Studio with voice practice and recorded sessions
  • Page-by-page feedback with inline corrections
  • Global hotkey text rewriting in any application
  • Cloud AI via OpenRouter (GPT-4o, Claude, Gemini, Llama, DeepSeek, Mistral)
  • Fully local AI via Ollama with zero network requests
  • Unlimited custom prompts with dedicated hotkeys
  • Local improvement history and operation tracking
  • Privacy-preserving PII redaction for emails, phone numbers, and credit cards
  • Diff preview to compare original vs AI result before applying
  • Streaming responses to watch AI generation in real time
  • Multilingual UI in English, Ukrainian, and Russian
  • Native .NET 8 implementation without Electron
What makes it different
  • Feedback typically delivered within 5 minutes using parallel processing
  • Comprehensive analysis across structure, logic, language, citations and plagiarism
  • Data protection with no training on user documents and user-controlled deletion
  • Money-back guarantee within 14 days if unsatisfied
  • Trusted by over 5000 students and universities globally
  • Works in any application via global hotkey—Word, Outlook, VS Code, browsers, email clients—without window switching or copying
  • Choose between cloud AI (OpenRouter) or fully local AI (Ollama) with full privacy and zero telemetry
  • Free forever core with no subscription, no trial, and no nag screens; optional $9 one-time Pro upgrade
  • Open-source code under MIT license allowing verification of program behavior and security
  • Per-prompt model selection and separate hotkeys for different text tasks
Community votes00
DR (Domain Rating by Ahrefs)18 −2 (down) since last check2 −1 (down) since last check
Trust Flow (Majestic)101
Citation Flow (Majestic)2520
Referring domains (Majestic)6123

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