When designing conversational flows, follow-up intents can be used to add nested context, but they become cumbersome to manage as complexity increases. In contrast, Voiceflow allows for more flexibility and reusability through intent scoping, enabling designers to reference reusable intents without creating new ones. Parameters in Dialogflow are structured data that can be used to perform logic or generate responses, whereas Voiceflow uses variables to achieve similar outcomes dynamically. IF statements in Dialogflow require coding, while Voiceflow uses backend logic checks as routers, making it more efficient for building rich prototypes and shipping contextual assistants at scale.