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AuraSpend " Voice-first expense tracker using Gemini for NLU

AuraSpend " Voice-first expense tracker using Gemini for NLU

by subhanzg·Feb 14, 2026·1 point·0 comments
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AI Analysis

●MidShip It

Voice-first expense entry with Gemini NLU, but expense tracking is solved by YNAB, Mint, Monarch.

Strengths
  • •Multilingual NLU with prompt engineering for consistent JSON output across 20+ languages including right-to-left scripts
  • •Bank notification interception for automatic pending entries reduces friction vs manual logging
  • •GPS-based currency detection and offline-first design with optional Google Drive sync
Weaknesses
  • •Expense tracking category is mature and well-funded: YNAB, Mint, Monarch Money all have voice input or superior UX
  • •50+ downloads and free-tier acquisition tactic (free Pro for 500 users) suggest difficulty gaining organic traction
Category
Productivity
Target Audience

Mobile users seeking friction-free expense tracking without manual entry

Similar To

YNAB (You Need A Budget) · Mint · Monarch Money

Post Description

I built an expense tracker where the primary input is voice. The thesis: expense tracking apps fail because manual entry has too much friction, which is why most people abandon them within weeks.

How it works: - Open app, tap mic - Say "yesterday I spent 30 dollars on lunch at Chipotle" - AI extracts: amount, merchant, category, date - One tap to confirm and save

Other features: - Receipt scanning with ML Kit OCR + Gemini Vision for parsing - Background notification listener that catches bank alerts and creates pending entries - GPS-based currency detection for travelers - Multi-language with native script fonts (Nastaliq for Urdu, Devanagari for Hindi, Amiri for Arabic) - Offline-first with Google Drive sync

Tech: Flutter, Riverpod, Hive, Gemini 2.0 Flash

The hardest part was prompt engineering for consistent JSON output across languages. Had to build "Supreme Laws" into the system prompt - things like "never translate native text" and "extract currency from context."

Free tier available. First 500 users get Pro free for a year.

Play Store: AuraSpend

Happy to discuss architecture, prompt engineering approach, or take technical feedback.

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