It is a full featured digital content marketplace plugin for WordPress. You can monetize and showcase any type of digital content like audio, video, image, apps and so on.

Solidie doesn’t set any limit on content. You can create unlimited.

Well, WooCommerce is not competitor of Solidie. Rather it uses WooCommerce as an underlying system for order and customer management. Solidie just provides a full journey exclusively for digital content creators and app developers. Such as flexible pricing builder, third party contributor support, app release management, subscription plan builder and much more.

Solidie provides a basic version for free available on WordPress plugin directory that supports free content showcasing only.
To monetize the contents you need to purchase the Pro extension plugin of Solidie that supports all the premium features such as monetization, third part contribution, contributor revenue sharing, unified dashboard for customers and contributors and more.

You can releases apps, manage version, auto update distribution like as like as playstore, appstore, WordPress repository etc. You just need to hit the provided API endpoint to your website from apps to check update and download if need.

Yes, It does in pro version for paid contents. Your customers will get license keys after purchasing apps from your website.

Solidie uses WooCommerce as an underlying system for checkout and order management. So you can use any WooCommerce plugin to manage these. For example you can use Redeem Code for WooCommerce plugin to add redeem features.