Khatabook is the ledger app for more than 10 million small shop owners across India. That's a huge number until you actually watch one of them use it. Most aren't designers. A lot aren't even fully comfortable with banking apps. So that's where I started: not with the app, but with the shop owner standing behind the counter, trying to close out their day.

Khatabook has crossed 10 million monthly merchants. Over 344 million customer accounts move through it.

<aside> 🚀 I didn't have access to real merchants, so I built my research out of whatever I could actually get my hands on.
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GET (money in) = green. PAY (money out) = red. Before, the same transaction type rendered in different colors depending on which screen you were on. Now it follows the convention every other finance app already trains people to expect.

A ledger app lives or dies on numbers. Tested a few fonts before settling on one with excellent character distinction — 0 and O, 1 and l and I don't blur into each other small detail, but it matters when someone's scanning a balance fast.