PromptVault is a free, offline-first prompt manager built for serious AI users. Unlike most prompt apps, it supports on-device AI models for private generation and also integrates with Ollama Cloud for powerful remote models. You can organize prompts with tags, collections, variables, and favorites, then use them anywhere with PromptVault Web on any screen. Secure backups, Drive sync, and true offline mode make it a complete productivity tool for AI creators.