Softprodigy is described as 'SoftProdigy is a team of professional eCommerce extension developers. We believe in providing excellent Magento and WooCommerce extensions that enhance the overall experience of your eCommerce stores'. There are six alternatives to Softprodigy for a variety of platforms, including Online / Web-based, Magento Community Edition, Windows, Linux and Self-Hosted solutions. The best alternative is Skubana. It's not free, so if you're looking for a free alternative, you could try Debutify. Other great apps like Softprodigy are Apptha Marketplace (Paid, Open Source), Module Bazaar (Paid), CedCommerce (Paid) and Knowband (Paid).
Skubana is an all-in-one operations management solution covering order fulfillment, inventory, purchasing, analytics and more, across multiple channels including warehouses and online services like Amazon, eBay and Ratuken.
Apptha Marketplace is a readymade b2b/b2c Multi vendor script built on Magento 1 & Magento 2 and it is cloud ready as well. Packed with 3 free add-ons (Social Login, One-step checkout, Super Deals) the script offers 1 year free cloud hosting on Amazon Cloud environment.