ARPAY - Buy gift cards at ar-pay.com, which allow you to access your favorite internet services: online games, e-wallets and console games, online shopping cards and many more!

AliPrice - AliExpress Price Tracker app lets you track the price history of any item from many online retailers like AliExpress, Daraz, and Amazon, etc.

G2A - Enjoy the vast offer of Steam, Origin, Uplay, Battle.net, GOG, PSN and XBOX CD-Keys at the most attractive prices on the market. Don’t overpay – buy cheap on G2A.COM!

idealo - Idealo is a free to use mobile application that helps you to find products, compare price and make an informed decision.

Kinguin - Marketplace to buy/sell game keys for a myriad of platforms including: Battle.

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