Electron App Store - There are many app stores available for many platforms.
Outbound Apps by Intercom - Embed apps right inside your messages
Secrets of the App Store - Maximize your presence on the App Store.
Hotline - In-app chat,real-time engagement & self-service for your app
Shopify App Store - The most powerful ecommerce app store
Semrush App Center - Power your marketing by connecting your apps to Semrush data