Comparison tools in the form of online platforms such as websites and apps are a valuable resource for consumers to compare electricity tariffs and offers. They support informed decision-making at the pre-contractual stage of the customer journey and enhance visibility of the retail market. Customers are relying on accurate, transparent, and trustworthy information when using these tools as these are key to help selecting a supplier and tariff that suits their needs and preferences. Hence, these tools must be properly designed in terms of fairness and transparency to ensure different types of electricity contract offers can be effectively and easily compared as well as in terms of equitable conditions across all types of comparison tools to strengthen a competitive market environment.