LedgerNote

Offline-First Financial Note-Taking & Micro-Accounting Engine

Role: Solo Mobile Architect & Developer

Executive Overview

Traditional accounting software is bloated, complex, and requires constant high-speed internet connectivity. LedgerNote allows solo entrepreneurs and market merchants to jot down daily transactions in plain text ("Collected 50k from Emeka for web design", "Paid 12k for generator fuel") and automatically parses them into debit/credit ledger accounts. Built with Flutter, Drift (SQLite), and biometric encryption.

<5ms

Local Query Latency

Sub-millisecond SQLite query execution

100%

Offline Guarantee

Zero cloud servers or network dependency

256-bit

Database Encryption

AES on-device vault security

1,200+

Active Micro-Merchants

Utilizing the offline tool across West Africa

Architectural Highlights

Natural language heuristic parser converting conversational notes into formal double-entry bookkeeping entries.
100% offline-first architecture with instant sub-millisecond local SQLite data access.
Biometrically locked SQLCipher on-device encrypted database ensuring absolute privacy.
Multi-currency support (NGN, USD, GBP, EUR, GHS, KES) with offline conversion tables.
One-tap clean CSV and PDF statement generation for tax filing and business auditing.

Technologies & Libraries

Flutter

Dart

Drift (SQLite)

Riverpod

Local Biometrics

SQLCipher

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