Every girvi entry lives in its own register, separate from sales and orders. When you add an entry you record the customer, a description of the item, its weight and purity, the amount you gave, the date and the monthly interest %. That is all the app needs.
From then on, each entry shows Interest till today and Total due today. When a customer walks in to release a chain or a pair of bangles, you open the entry and read the number. No counting months, no calculator, no mistakes when the register has dozens of open loans. If you want to understand the arithmetic yourself, read how to calculate girvi interest (with examples).
Girvi records are sensitive. JewelKhata stores them only on your phone, encrypted with AES, behind your PIN, fingerprint or Face ID and auto-lock. There is no cloud, no account and no server — so there is nothing for anyone to hack or request from us. A Decoy PIN opens a separate vault if you are ever pressured to unlock the app. Read the details on the security page.