Do I need to set up an ACL in the smaconne app to restrict access from smart devices?: Frequently Asked Questions: smaconne: Easily use the Notes app on your iPhone, iPad, Android and other smart devices!

Yes, it is required.
smaconne disallows unauthenticated (Anonymous) access by default.
smaconne will connect to multiple Notes apps, so make sure to set the ACL of users/groups to each app.
The connection to each Notes app will be made according to the ACL of each Notes app.
For more information on the ACL of the smaconne app, please see the "smaconne User's Manual".