IcoFX might be a bit more popular than TaxJar. We know about 1 link to it since March 2021 and only 1 link to TaxJar. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Might want to check out taxjar.com, I haven't used it but one thing they claim to do is help with this compliance. Source: almost 2 years ago
If you're looking for an icon editor, there are many available, such as IconWorkshop, Icofx, and Iconion, but I haven't tried any of those. Source: about 1 year ago
Avalara - Cut tax compliance costs, not corners. Avalara automates tax compliance and can help improve accuracy while reducing costs.
IconsExtract - Extract icons and cursors stored in EXE, DLL, OCX, CPL files
Thomson Reuters ONESOURCE - ONESOURCE tax software and solutions synchronize every aspect of your work and link international, country, state and local tax laws.
IconWorkshop - Application to create and manage software icons. A must for developers.
Vertex Cloud - Vertex Cloud offers sales and use tax automation solutions.
IconLover - Icon editor for Windows.