granite.co

What It Is

Granite is an AI document vault for important personal files. Its focus is not being a general-purpose cloud drive or note-taking app, but long-term storage, automatic filing, and on-demand Q&A for documents such as tax forms, IDs, vehicle titles, leases, insurance paperwork, medical EOBs, receipts, and small-business files. Users can upload PDFs, Word documents, scans, photos, HEIC/HEIF files, or folders, and the system handles reading, classification, field extraction, and collection creation.

Core Capabilities

Granite’s AI capabilities center on “understanding documents.” According to the company, it already supports 60+ document types and can extract key fields such as wages, dates, amounts, account numbers, and expiration dates. It also generates an English summary and links related entities such as people, vendors, vehicles, accounts, and tax years. Its search layer supports a mix of keyword, semantic, and entity-based search, and users can ask questions in natural language, such as when a passport expires or what an insurance deductible is. Answers include source documents and page numbers for verification. Corrections help Granite become more accurate for the user’s own archive, rather than training on all users’ data.

Pricing and Integrations

The free plan is available permanently, limited to 25 documents and 1GB of storage, while still including document reading, search, Q&A, export, and 12 months of audit logs. The paid plan costs $99/year and includes 100GB of storage with no document limit, plus email intake, Move Mode, emergency contacts, and an inactivity heartbeat. There is no monthly billing and no traditional free trial, but a live demo is available without registration. The paid plan also provides a read-only REST API and MCP server, allowing integration with Claude Desktop, Claude Code, Cursor, or Codex; uploads still need to be done via the web app or email.

Privacy, Security, and Limitations

Granite encrypts each document with an independent AES-256-GCM key, and titles, summaries, and extracted fields are additionally encrypted in the database. It supports audit logs, MFA, session revocation, and full or scoped exports. Its terms state that user documents are not used to train models, archive access is not sold, and content is not used for targeted advertising, but documents are processed via third-party AI providers. The limitations are also clear: AI classification, fields, and summaries may be wrong, and it cannot replace professional legal, tax, medical, insurance, or financial review. Direct import from Drive, Dropbox, and Evernote is still on the roadmap, and family/team plans have not launched yet.

Who It’s For and Access from China

Granite is a good fit for users who are willing to centralize important personal documents for long-term management, want to spend less time naming and tagging files, and often need to check expiration dates, tax information, or insurance details. It may also appeal to technical users who want read-only access to their own archive via API/MCP. It is less suitable for scenarios that require clearly guaranteed Chinese-language support, multi-user collaboration, monthly billing, or enterprise compliance procurement. The collected information does not specify accessibility from mainland China, supported payment methods, or Chinese-language support, so access from China is unknown. Alternatives include Evernote, Google Drive, Dropbox, Notion, DEVONthink, paperless-ngx, or Adobe Acrobat AI Assistant.