Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
LoveSales - Find and save products you love, get alerted when they go on sale.
Keepa - Price history charts and the option to be alerted on price drops for all Amazon sites.
TrackIf - Alerts you if the price of your favorite products drop
HARPA AI - AI-powered Web Monitor that automates websites and monitors prices, articles, brand mentions, competitors, vacancies for you
Giftwhale - Giftwhale allows you to create personalised wish lists online.