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Browser extension for fake discount alerts
A browser extension can detect whether a displayed sale is actually attractive by overlaying price history and context-aware deal quality on product pages. The strongest demand in the discussion is for a low-friction tool that works while users shop instead of requiring manual product entry.
Pourquoi c'est important
You are browsing a product page, see a bright sale banner, and feel pressure to act before the offer disappears. But you have no trustworthy memory of what the item usually costs, and opening a separate tracker is enough friction that you often skip it. Later, you find out the so-called deal was close to the normal price or a recycled promotion. The pain is strongest for people who shop across many stores and make medium-ticket purchases often enough to care, but not enough to maintain their own spreadsheets or screenshots. Existing tools ask you to search manually or start tracking too late, so they fail at the exact moment you need confidence.
- · Conçu pour Frequent online shoppers who buy consumer goods across multiple stores and want instant reassurance before checking out..
- · Monétisation la plus probable : Freemium.
La douleur · Récit
You are browsing a product page, see a bright sale banner, and feel pressure to act before the offer disappears. But you have no trustworthy memory of what the item usually costs, and opening a separate tracker is enough friction that you often skip it. Later, you find out the so-called deal was close to the normal price or a recycled promotion. The pain is strongest for people who shop across many stores and make medium-ticket purchases often enough to care, but not enough to maintain their own spreadsheets or screenshots. Existing tools ask you to search manually or start tracking too late, so they fail at the exact moment you need confidence.
Détail du score
Signal du marché
Mise sur le marché
Desktop-heavy online shoppers who frequently buy electronics, home goods, and appliances and already use browser extensions.
A few hundred thousand reachable early adopters globally
Product Hunt
$5/month
100 weekly active extension users and 20 paid conversions within 30 days
Périmètre MVP · 1–2 semaines
- Build a Chrome extension that detects product pages on 5 target retailers
- Create a basic parser for title, price, currency, and product URL normalization
- Set up a PostgreSQL schema for product snapshots with timestamp and retailer context
- Add a simple in-page widget that shows current price and a placeholder history chart
- Implement a manual add-to-watchlist action from the extension popup
- Backfill 30 to 60 days of historical prices for the 5 target retailers using scheduled scraping
- Add a simple deal score that compares current price to recent median and minimum
- Launch email alerts for price drops and suspicious reference-price jumps
- Instrument extension analytics for installs, widget opens, and watchlist additions
- Publish a landing page and run a waitlist test with example screenshots
Différenciation
Pourquoi cela pourrait échouer
Auto-contre-argument — le signal de confiance le plus important
- 1Retailer anti-bot defenses and HTML changes may make coverage too fragile for a small team to maintain.
- 2Consumers may like the concept but not value it enough to pay recurring fees when shopping is intermittent.
- 3If the extension lacks immediate history for many products, first-use trust may collapse before habit forms.
Résumé des preuves
Comment l'IA a synthétisé cet aperçu — pas de citations textuelles
Multiple commenters directly requested an extension or asked for price history on the product page itself. Several others reinforced that fake discounts are common and stressful, suggesting strong demand for in-context reassurance. Questions about first-time usefulness also indicate that instant value at the page level is a core differentiator.
Plan d'Action
Validez cette opportunité avant d'écrire du code
Prochaine Étape Recommandée
Construire
Signaux de demande forts. Vraie douleur et volonté de payer détectées — commencez à construire un MVP.
Kit de Textes pour Landing Page
Textes prêts à coller, basés sur le langage réel de la communauté Reddit
Titre Principal
Browser extension for fake discount alerts
Sous-titre
A browser extension can detect whether a displayed sale is actually attractive by overlaying price history and context-aware deal quality on product pages. The strongest demand in the discussion is for a low-friction tool that works while users shop instead of requiring manual product entry.
Pour Qui
Pour Frequent online shoppers who buy consumer goods across multiple stores and want instant reassurance before checking out.
Liste des Fonctionnalités
✓ Product-page overlay showing 30 to 180 day price history ✓ Instant badge for likely real deal, normal price, or suspicious sale ✓ Auto-watchlist and alerts for tracked items
Où Valider
Partagez votre landing page sur r/Product Hunt · productivity — c'est exactement là que ces points de douleur ont été découverts.
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