Dynamic Inventory is described as 'inventory control P.O.S. system for small to mid size businesses. It allows companies to track their inventory, products, vendors, purchase, and sales'. There are five alternatives to Dynamic Inventory for a variety of platforms, including iPhone, Mac, Windows, Android and Linux. The best alternative is Veeqo. It's not free, so if you're looking for a free alternative, you could try Tana Inventory Management or POS.SITECO.CA. Other great apps like Dynamic Inventory are Primaseller (Paid) and TradeGecko (Paid).
Primaseller is cloud based POS Software which Integrates with multiple online channels of sale synchronizing inventory and orders from a single platform. It also integrates with Shippers, QuickBooks online and Multiple Payment Methods.