The result
A scanner whose verdicts can be checked by hand and that keeps each user's health topics on their phone, backed by a curated catalogue and hormoneguard.com, now in testing ahead of its store launch.
A verdict on a product someone uses during pregnancy has to be right, explainable and private. HormoneGuard rates each of seven topics on its own (pregnancy, PCOS, fertility, thyroid, general hormone health, skin sensitivity and children's products) and says Unknown rather than Low Risk when the data is thin. It also has to stay honest when the product data comes from public databases, a photograph or an AI model, none of which can be taken on trust.
Built the scanner in Flutter for iOS and Android: scan a barcode, type the digits or photograph the ingredients panel
Scored every product on the phone from a published deduction table, topic by topic, so any verdict can be checked by hand on the Methodology screen
Kept personal data on the device: scan history, saved products and health topics live in SQLite, while a shared Firebase cache holds public product facts only and is written by the server alone
Sent unrecognised ingredients to Gemini through a Cloud Function that never receives the user's topics, score or verdict, guarded by App Check and rate limits
Gave the team an admin panel to curate products, review AI-drafted labels for unknown barcodes, publish warnings and write the blog
Tested detection against 183 real product records in five languages from Open Food Facts and Open Beauty Facts, across a reviewed dataset of 340 ingredients
Captured from the delivered build. Where demo content appears, the names, products and figures are illustrative.
Every technology choice was driven by the project's specific requirements and constraints.
WEB · MOBILERetail & E-Commerce (Sanitary Ware)Multi-phase build
The branch now sells nationwide online and in-store through a single synchronized system covering catalog, orders, payments and delivery.
WEB · MOBILEOn-Demand Services (Laundry & Cleaning)Multi-app platform
Pickup, cleaning, tracking and delivery now run through one connected system that keeps customers, vendors and drivers in sync.
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