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Penelope AI vs Quillbot
Side-by-side comparison of features, pricing, and ratings
Pricing
Freemium
Freemium
Plans
$0/mo
$14/mo
Custom
$0/mo
$10/mo
Popularity
5.7k views
6.0k views
Skill Level
Beginner-friendly
Beginner-friendly
API Available
Platforms
Web
Web
Categories
✍️ Writing & Content
✍️ Writing & Content
Features
AI autocomplete that predicts and composes text
Chat with PDF for information retrieval
AI-powered paraphrasing and summarizing
Modify writing tone and style quickly
Unlimited documents on paid plans
Unlimited AI feature use on Ace plan
Unlimited file uploads on Ace plan
50 free credits for trial
Supports essay, blog, research, social, newsletter writing
14-day refund policy
Paraphrase text with multiple modes
Grammar and spell checker
AI detector for AI-written content
Plagiarism checker
AI humanizer to make text sound natural
AI chat for brainstorming and writing
AI image generator
Summarizer to condense text
Translator supporting multiple languages
Citation generator in APA, MLA, Chicago
Cover letter generator
Social media post writer
Presentation creator
Chrome, Edge, Safari, Word extensions
Mobile apps for iOS and Android
Integrations
Chrome
Edge
Safari
Word
macOS
Windows
Android
iOS