CoinDCX - An exchange and global cryptocurrency aggregator

Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.

Crumbs - Turn spare change into crypto 🚀🌕

Keepa - Price history charts and the option to be alerted on price drops for all Amazon sites.

Gemini - Gemini is a web-based project management platform that supports for issue tracking, bug tracking, test management, help desk.

Fetchee - Fetchee is a free price tracking wish list app that works with all online stores worldwide.