What are some alternatives?
Prisync - Prisync is a competitor price tracking and monitoring software for all sizes of e-commerce companies worldwide.
TaxJar - TaxJar simplifies sales tax filing for eCommerce sellers.
NetSuite - NetSuite is the leading integrated cloud business software suite, including business accounting, ERP, CRM and ecommerce software.
BizAutomation - Cloud ERP for the smaller SMB
Zoho Checkout - Zoho Checkout lets you accept one-time and recurring payments online using customizable checkout pages. Try for FREE!
Avalara - Avalara TaxRates API is an easy way for developers to use sales tax rates in their project.