No, there is no cost for using the YL Cryptocurrency Balance Checker software. This free tool offers users the ability to quickly check their account balance for up to 1000 words of any cryptocurrency, including Bitcoin, Litecoin, Ethereum, and more. The tool is designed to be user-friendly and does not require a download. It is also secure, so users can have peace of mind that their personal information is not being stored or accessed by anyone else. Additionally, the tool is regularly updated with new features and bug fixes.