Question: I need a platform that lets me control custom prompts and store conversations locally, do you know of any?

One of the leading options is Voiceflow. The service is geared for building, deploying and scaling chat and voice AI agents. It's got a lot of features for customizing AI experiences, including a knowledge base, multi-step workflows and centralized data storage. Voiceflow can connect to a variety of services, including analytics tools, CRM software and e-commerce sites, so it's a good option for automation and conversation design.

Another strong option is PromptDrive, which is geared for managing and collaborating on prompts. The service lets you create, share and refine prompts, with features like organization tools, variables to make it easier to create prompts, and a Chrome extension for quick access. It supports multiple AI models and offers a range of pricing plans, so it can scale to accommodate teams of different sizes and needs.

If you're looking for a more secure and all-purpose option, check out Promptitude. The service is geared for using Generative Pre-trained Transformers (GPT) in your own apps, with personalized and high-quality results. It supports multiple AI providers and models, has secure sharing and user management, and has features for storing content and contextual prompts. Promptitude also supports a range of use cases, including AI text generation and meeting minute automation.