No specific info about version 3.1. Please visit the main page of iSnapshot on Mac Informer.
The all-in-one macOS screen capture, recording & editing suite.
A small browser extension for taking webpage snapshots.
It helps you to capture screen, and annotate the screenshot image effortlessly.
For storing backups efficiently so you can ‘roll back’ if you need to.
Xilisoft DVD Snapshot allows you to capture snapshots from your DVD movies.