Smart Debit is a direct debit payment processor which allows your organisation to take direct debit payments. The SmartDebit extension integrates this with CiviCRM and support automatic synchronisation of successful/failed payments as well as a reconciliation mode when you have mismatched data. Documentation here: https://docs.civicrm.org/smartdebit/en/latest/
Installable through CiviCRM's user interface?
- Since CiviCRM 5.x, extension releases compatible with CiviCRM 5.0 are compatible with 5.0 and later. An extension release compatible with 5.25, for example, means that it requires CiviCRM 5.25 or later.
- Learn more about installing CiviCRM extensions.