3.8 / 5

Price Memory

Tracks prices across shopping sessions, alerts when things change

Useful

Privacy

The Problem

Can't remember prices, miss sales, don't know if 'deals' are real

Current Solutions (Not Great)

CamelCamelCamel (Amazon only), Honey (sells data), manually checking prices

Who Needs This

Online shoppers, deal hunters, considered-purchase buyers

You look at a product, think 'maybe later,' and forget about it. Or you buy it, then discover it dropped 20% the next week. Price Memory watches product pages as you browse and remembers prices automatically. When you revisit a product or it goes on sale, you see the price history immediately. It's passive price tracking that requires zero effort—just browse normally and the extension does the rest.

Honest Take

Price tracking extensions are everywhere (Honey, Karma, CamelCamelCamel) and many have questionable business models that sell user data. The passive tracking angle is nice, but extracting prices reliably from constantly-changing e-commerce sites is a maintenance nightmare—every site redesign breaks your parsers.

Monetization Ideas

Ways to turn this into revenue

Freemium

Free basic, $5-15/mo for pro

Affiliate / Referral

10-30% commission on referrals

Ad-Supported

$1-5 CPM, needs volume

Features

Key features that make this app valuable

Automatic price detection on product pages
Price history chart on revisit
Price drop notifications
Cross-site tracking (Amazon, Best Buy, etc.)
Deal validation (is this really a sale?)
Wishlist with price targets
Price comparison suggestions
Export shopping data

Build Prompt

Use this prompt with an AI assistant to start building

Build a Chrome extension called 'Price Memory' using WebInfer. Manifest V3 with activeTab, storage, notifications, alarms permissions. Content script runs on shopping sites (Amazon, Best Buy, Target, Walmart, etc.). On product page load, use AI to extract: generateObject returns { isProductPage: boolean, productName: string, price: number, currency: string, originalPrice?: number, seller: string, productId: string }. Store in chrome.storage.local: { [url]: { name, prices: [{ price, date }] } }. Inject price history widget on page showing: current vs. past prices, all-time low, price trend chart (sparkline). Popup shows recently tracked items. Wishlist tab: add products with target price, alarms API checks daily, notification when target hit. Badge shows price drop count. 'Is this a good deal?' button compares to 90-day history.

Score Breakdown

Pain