Signatures on Printed Checks

Everyone keeps telling me to use a 3 party app to resolve this, but I'm unable to find an app to resolve this issue.  This issue in my opinion is something that should be available.  Along with getting INV-119759 fixed, as inactive customers showing as active is terrible.  I was told it was going to be resolved within a week or so, it's been over 3 weeks, and no resolution.  Pretty frustrating.  I'm thinking I need to go back to Desktop!