CartSage
Project Snapshot
Timeline
Mar 2026 - May 2026
Delivery Time
6 weeks
Price
$19,500
Industry
Grocery, Savings, Shopping, Consumer App
Client
A Canadian smart grocery-shopping platform
Platforms
App Screenshots
What the App Does
CartSage is an app that consolidates grocery shopping information from multiple stores into a single interface. You can view current prices from different supermarkets, browse their weekly flyers, and see which store has the best deal on items you want to buy. The app also lets you create shopping lists, get notifications when items go on sale, and plan the most efficient route to visit stores.
- Compare prices for the same product across different grocery stores in your area
- Browse digital flyers and weekly ads from multiple stores without visiting each website separately
- Build and manage shopping lists within the app
- Receive alerts when items on your list go on sale
- Plan optimized routes to visit one or more stores based on your list and location
The app tracks how much money you save over time by choosing lower-priced options.
The Challenge
Grocery shoppers were stuck in a time-consuming cycle of manually hunting through multiple store flyers, comparing prices product by product, and then trying to figure out if driving to different stores for better deals was actually worth the gas money and extra time. They had no easy way to see the bigger picture of their total savings versus the real cost of getting those savings. The planning process was fragmented, with people juggling physical flyers, handwritten lists, and mental math about which stores to visit.
- Shoppers had to search through multiple store flyers separately to find prices on the same items
- Price comparison happened one product at a time with no way to see total potential savings
- There was no tool to calculate whether driving to another store would actually save money after factoring in time and fuel costs
- The shopping list, price research, and route planning were all separate manual tasks
- People couldn't easily decide if a deal was genuinely worth the extra effort to get it
The entire grocery planning process was inefficient and left shoppers guessing whether their efforts to save money were actually worthwhile.
The Approach
CartSage was built as a grocery shopping list application that solves the problem of comparing prices across stores and planning efficient routes to save money. The core technical decision was to integrate Google Maps Platform APIs to handle multi-stop route optimization based on the user's actual location and whether they're driving, walking, or taking transit. The product centers on a list interface where users add items, then the app queries pricing data from different stores and calculates which combination of stops saves the most money while minimizing travel time. Users can also browse digital flyers and track their cumulative savings over multiple shopping trips.
- Shopping list as the primary interface where users add items manually or search from a product database
- Price comparison engine that queries multiple grocery store inventories and displays cost differences per item and per complete list
- Google Maps Platform integration to generate optimized routes between selected stores based on transportation mode
- Deal alerts and digital flyer parsing to surface discounts from participating stores
- Savings history feature that tracks how much users saved compared to single-store shopping over time
The app essentially automates the work of checking multiple store flyers and planning a logical path between locations to maximize grocery savings.
Key Features
Tech Stack
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