Overview
- Originality.AI: Specializes in identifying AI-generated content and checking for plagiarism. Their primary focus is on content authenticity rather than a suite of AI writing tools.
 - Inkey.AI: Provides a comprehensive set of AI-powered tools for content creation, analysis, and improvement. They combine AI detection with writing assistance, making them a more versatile platform.
 
Key Features & Advantages of Inkey.AI
- AI Detector: 
Inkey.AI includes a powerful AI content detector to help identify text that may have been generated by language models. This is crucial for maintaining the integrity of your own work and assessing others'.
 
- Free Plagiarism Checker: 
Like Originality.AI, Inkey.AI has a robust plagiarism checker to ensure your writing is original and avoids unintentional copying.
 - Versatile AI Writing Tools:
 
Inkey.AI stands out with its extensive selection of AI writing tools:
- AI Essay Writer: For generating comprehensive essays on various topics.
 - Essay Expander:  Useful for elaborating on existing content.
 - Free Paraphrasing Tools: To restate text in a fresh way while maintaining the original meaning.
 - AI Email Writer:  Perfect for drafting various types of emails.
 - Citation Generator: Ensures proper citations and avoids accidental plagiarism.
 - Word Problem Solver: This unique tool demonstrates Inkey.AI's commitment to broader educational assistance.
 
Pricing
- Originality.AI: Offers credit-based pricing where more credits give access to more scans with varying plans. 
 - Inkey.AI: Transparent subscription-based pricing with several affordable tiers: https://www.inkey.ai/pricing
 
Top Reasons to Choose Inkey.AI
- Wider Range of Tools: 
Beyond AI detection, Inkey.AI helps with various stages of content creation, making it a true all-in-one platform.
 - Educational Focus: The Math word problem solver demonstrates Inkey.AI's potential value for students and educators.
 - Transparent Pricing: Subscription plans provide predictable costs, especially for heavy users.
 - User-Friendly Interface: Inkey's interface is designed to be intuitive for users of all skill levels (Important to verify through user reviews or test drive).
 
Disclaimer: It's important to try both platforms to see which one better suits your needs. User experience and specific feature implementations can play a significant role in your final decision