Yes, both ChatbotGPT and Quetab offer a Free Trial.
Pricing for ChatbotGPT Starts at $25/month whereas for Quetab Starts at $9.99/month.
Quetab offers several advantages, including Flashcards from text, images, audio, Unlimited flashcard creation, Flashcard sharing option and many more functionalities.
The cons of Quetab may include a No offline mode, Limited study set subjects, Community dependent Q&A, Content quality varies. and Potential privacy concerns