AMJSTAR
Merchant Digital Ledger & Catalog
Offline-first merchant ledger and catalog builder for small businesses and retail shopkeepers.
Problem Statement
Designing a lightweight app that runs reliably in low-connectivity areas, letting small shopkeepers log transactions and send reminders without heavy data sync requirements.
How We Solved It
An offline-first Android application synced with local SQLite databases that sends transaction statements and invoice alerts via automated WhatsApp API triggers.
Outcomes Delivered
Fully functional offline with local database sync
Automatic transaction reminders to customers
Reduced late payments by 35% for shop owners
4.8★ app store rating for ease of use
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