ARVE WordPress Plugin is free on wp.org. Look there for the feature set.
Permalink download to latest version. It will at times be an alpha or beta version that passed the automatic tests but is not released to wp.org. You can upload it a WordPress site under Dashboard > Plugins -> Add New -> Upload.
Feel free to file issues with the code, for support please file a ticket on nextgenthemes.com/support/
Code contributions are welcome.
Paid addons that finance this project are available:
If you have an idea for a functionality or addon you like to pay for, please reach out.