Onyx - Smart Expense Tracker & Local AI Diagnostics

Visual Walkthrough

Engineered for Elegance & Speed

Explore Onyx across both smartphone and tablet form factors. Enjoy smooth transitions, intuitive controls, and high-density financial data.

Smart Spending & Wallets

Track cash flow across custom wallets, categorized expenses, and automatic transaction detection in real time.

Onyx AI Diagnostic Engine

Gain automated financial health scores, burn-rate forecasts, and actionable liquidity advice completely offline.

Expanded Tablet Dashboard

Optimized for larger screens. Generate high-resolution PDF spreadsheets and inspect multi-month ledger breakdowns.

Key Features

Why Choose Onyx?

Every feature in Onyx is crafted with a privacy-first mindset, giving you sovereign ownership over your financial logs.

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Local SMS Auto-Parsing

Optionally scans bank alerts locally on your device to log expenses instantly. Raw messages never leave your phone.

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Onyx AI Engine (Beta)

Run intelligent budget analysis, savings diagnostics, and liquidity reports completely offline with zero latency.

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Dynamic Themes

Switch between 6 curated, app-wide brand color templates that cache securely across device restarts.

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PDF Financial Statements

Export elegant, printable monthly transaction spreadsheets and ledger sheets offline whenever you need them.

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In-App Notifications

Receive clean, actionable internal notifications for category budget limits and warning milestones.

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Offline-First Security

Fully encrypted local storage with seamless, secure Supabase cloud sync when you choose to connect.

Behind Onyx

Built with Pride by DevEngine

DevEngine engineers intelligent, privacy-first software products designed to give users control of their digital lives.

Engineering Studio

DevEngine

DevEngine specializes in crafting high-impact digital experiences, robust mobile applications, and intelligent cloud systems. Onyx is engineered under DevEngine's core mission of speed, privacy, and architectural excellence.

Visit devenginehq.com Contact DevEngine

Lead Developer

Abdul Hamim Leon

Software Architect & Mobile Engineer

Independently engineering high-performance, private-first mobile applications with modern design systems and offline-first intelligence. Creator and lead developer behind Onyx and its local AI framework.

Portfolio (hamim.devenginehq.com) GitHub LinkedIn

Redefine Your Financial Freedom