A: I haven't used Sintra AI.

Based on the videos on their website and available information, Alice emphasizes integration with its own tools through automated (Remote Snippets) or programmatic solutions (Custom AI). Alice offers more than prompts. Its visual interface and customizable features let you tailor your experience, moving beyond standard prompt-based solutions.

I'm not entirely sure if that's accurate, but based on my current knowledge:
Sintra seems to focus more on answers, while Alice extends them by actually taking actions.