“The app contains no crash reporting or analytics frameworks with the exception of the beta version that uses HockeyApp for crash reporting.” https://secureshellfish.app/privacy.html
More apps need to have a policy like this!
More apps need to have a policy like this!
It even has the sandbox entitlements to prove it.
You could use something like Charles for iOS to see that it doesn't connect to anything except the servers you configure.
Gotta fall back to wireshark for 100%.