Observed arrival · 2026-09-06
BisikDuit: Expense Tracking by Voice, Locked on Your Phone
An Indonesian expense tracker that turns spoken, everyday descriptions into categorized transactions, encrypting the records on the user’s phone.
Field notes
BisikDuit parses spoken Indonesian purchase descriptions into amount, category, wallet, and date, then describes encrypting each record on the phone before storage. Its key model separates a passphrase-derived private key from a random household key, with AES-GCM 256-bit encryption and PBKDF2 at 600,000 iterations. The site also documents a meaningful boundary: voice input is sent to Google for recognition, while typed entry avoids that service. Exports are assembled locally as monthly or full-history CSV files.
Observed signals
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