Form 8938/FATCA requires the Taxpayer to disclose more detailed information about the accounts and assets than the FBAR does. Only accounts that the taxpayer has an interest in are required to be reported for FATCA.
FinCEN Form 114, Report of Foreign Bank and Financial Accounts (FBAR)
IRS Official Site Info:
https://www.irs.gov/businesses/comparison-of-form-8938-and-fbar-requirements
BTW, Big Bros, this form is a different stuff:
Form 8939. Department of the Treasury. Internal Revenue Service. Allocation of Increase in Basis for Property. Acquired From a Decedent.
