In buildShopping · Groceries · Price Comparison · AI Assistant

Julyu – The Smartest Way to Shop & Save on Groceries

Julyu is an AI-powered grocery shopping assistant that helps you save money and time by comparing total grocery costs across nearby stores in seconds. Instead of checking prices item by item, Julyu analyzes your entire shopping list at once. Using advanced AI and large language models, Julyu understands your list, matches products across retailers, and calculates the full cost at each store — including availability, travel time, and delivery options. Julyu doesn’t just show individual prices. It tells you where your full list is cheapest and most convenient, helping you decide whether it’s worth driving a few extra minutes or choosing delivery. Whether you’re shopping for groceries, household essentials, or weekly staples, Julyu makes smarter shopping effortless by combining real prices, location data, and personalized time value into one clear recommendation. Save money. Save time. Shop smarter with Julyu.

12–18%Average basket savings
18–25 minutesWeekly time saved per user
2–6 hoursPrice update latency
38–52%Conversion to best basket

How it's built.

Production infrastructure, not a demo — built solo with an AI-native process and run like a business from day one.

Frontend

  • Next.js responsive web app with SEO-first public pages
  • Personalized grocery list builder with preference learning
  • Basket comparison UI with savings explanations
  • Price history, alerts, and budget dashboard views
  • Receipt scan and savings recap workflow

Backend

  • Supabase Postgres data model for products, prices, and users
  • API routes for list analysis, comparisons, and admin metrics
  • Ingestion pipeline for retailer prices and promotions
  • Normalization and unit conversion for cross-store comparison
  • Secure auth, roles, and audit logs for internal tools

AI / ML

  • Product matching model for cross-retailer SKU alignment
  • Basket optimizer with constraints and substitution logic
  • Receipt OCR + item reconciliation for post-purchase savings
  • Price anomaly detection for alerting and data QA
  • Personalized deal ranking based on history and preferences

What it's about.

Grocery Price ComparisonSmart ShoppingGrocery OptimizationShopping List AnalyzerCost Comparison

See it for yourself.

It's real, it's shipping, and the numbers are on this page. Go poke at it — then tell us what you'd build.

Visit Julyu