The parts that
actually run.
Written in the present tense because each of these has been used. Anything not built yet is in the last paragraph on this page instead.
Warns before the return window closes, not after
Stock can go back to the distributor while it is still inside the return window. Once that window passes, the same box is a loss. The app counts the days so nobody has to.
Tracks what is owed, to whom, and by when
Different distributors run different terms, from a week to ninety days. On paper that becomes one number in a notebook. Here it stays as separate dated debts.
Reads the delivery slip from a photo
Typing a challan in by hand is where shopkeepers give up on software. Photograph it instead, and the rows get matched against the catalogue on the device itself.
Speaks the shop's language
বাকি, জমা, দেনা. The vocabulary is the one already written in the paper khata, because a shopkeeper who has never used an app should not have to learn a second vocabulary to use this one.
The decisions,
and why.
Every one of these was a fork in the road where the other option was easier. This is the reasoning, so you can disagree with it.
Pharmacy, not general shop software
General shop software in Bangladesh is crowded and there is a free product with millions of registered businesses in it. A free competitor can stay free forever. Pharmacy is a different buyer with a different reason to pay.
The device does the matching, not a server
Matching medicine names runs on the phone, so it works with no connection and the catalogue cannot quietly drift away from what the shop actually stocks.
The shop can add its own medicine
New brands appear every month, so a missing entry must never be a dead end. Anything not in the catalogue can be added in place and used immediately.
This has no customers. It is being built and extended, the catalogue it ships with is incomplete, and the central assumption, that data entry is the reason shops abandon software, has not yet been checked with a real shopkeeper. That check is the next thing that matters, not another feature.
Especially if you run a pharmacy, or supply one.