Yes, both SOS Inventory and Order MS offer a Free Trial.
SOS Inventory is designed for Large Enterprises, Medium Business and Small Business.
Order MS is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for SOS Inventory Starts at $39.95/Month whereas for Order MS Starts at $25/User/Month.
Some top alternatives to SOS Inventory includes Zoho Inventory, Fishbowl, Order MS, OfficeBooks, Qualified, Boxstorm, SkuVault, Shopventory, Workvivo, Cloud Inventory and IFTTT.
Some top alternatives to Order MS includes Rutamsoft Inventory Management System, inFlow Inventory, Multiorders, CyberStockroom, ZapInventory, Shopventory, Acctivate Inventory Software and EZOfficeInventory.