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Fintech Mobile OS

Kira Credit

10,000+ Downloads

Engineered an offline-first SQLite sync engine allowing micro-entrepreneurs in emerging markets to track finances without internet dependency. Integrated server-side cron jobs and Meta SDK for data-driven user acquisition.

FlutterSupabaseOffline-FirstB2C
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Kira Credit dashboard showing multi-book ledger and cash flow

[ architecture.snippet / kira-credit ]

> local_write() -> queue

> queue -> reconcile() on wifi

> pk: uuid // collision-free

> sync_status: pending|synced

[ GALLERY ]

Kira Credit ledger entry screen for tracking debts and expenses

[ TRANSLATION LAYER ]

// FOR_FOUNDERS

The Business Story

The Challenge

Micro-entrepreneurs in emerging markets rely on pen and paper to track debts and expenses, leading to lost revenue and high anxiety. They needed a digital solution, but internet connectivity in these regions is highly unreliable.

My Approach

I didn't just build an app; I built a resilient, offline-first financial command center. I architected a system that saves data directly to the phone first, allowing users to run their business with zero internet. Once they hit Wi-Fi, the app seamlessly syncs to the cloud.

The Result

The app has achieved over 10,000 downloads on the Google Play Store, featuring a fully integrated monetization pipeline and automated server-side notifications to keep users engaged.

// FOR_ENGINEERS

The Tech Specs

Stack

FlutterDrift (SQLite)RiverpodSupabasePostgreSQLDeno Edge FunctionsRevenueCatMeta SDK

Engineering highlights

  • >Engineered a collision-free, multi-device sync engine for seamless operation in low-connectivity zones.
  • >Shipped a multi-book ledger with an automated PDF reporting engine (P&L, Receivables Aging).
  • >Built server-side scheduled Edge Functions for overdue-payment alerts and weekly summaries.
  • >Integrated Meta SDK + RevenueCat to optimize acquisition for high-quality, paying users.