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Reviva is a learning workbench developed by Reviva, currently at version 1.3.0, with nine versions released to date. The software is designed to help users work with their own materials across the full cycle of learning and knowledge management, covering question answering, note-taking, review, and creative output, rather than starting from a blank chat window each time. It falls within the knowledge management and AI-assisted learning software category. The product combines several components into a single environment: a local document repository, a Wiki-style knowledge base, an AI Agent, knowledge base retrieval, note and document management, a Skills capability system, and a set of creation tools. Its local-first architecture means user data and materials are stored primarily on the user's own device, while support for multiple models allows different AI models to be integrated into the workflow rather than locking the user into a single provider. Use cases include asking questions grounded in one's own reference materials, organizing notes and documents, building and searching a personal knowledge base, conducting spaced review of study content, and producing written or creative output based on accumulated knowledge. The AI Agent can operate over the user's materials, while the retrieval and Wiki functions make stored knowledge discoverable and interconnected, and the Skills system extends the tool's capabilities for specific tasks. Reviva is suited to users who want AI genuinely embedded in their learning and knowledge management processes, such as students, researchers, and knowledge workers who accumulate large volumes of personal materials and want their tools to build on what they have already collected. By unifying storage, retrieval, reasoning, and output in one local-first workbench, the software aims to make knowledge work continuous and cumulative, turning a growing personal library into an active resource for study and creation.
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