AuditR is a .NET MAUI application that lets users photograph receipts, and store each receipt as a tamper-proof block in a local SHA-256 hash-chained blockchain. Processed receipts are automatically uploaded to Dropbox for cloud backup. The app is designed for small businesses and individuals who need a lightweight, offline-capable audit trail for expense management, with optional cloud-based AI (GPT-4 Vision) integration for more intelligent field extraction.
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