WordPress (10000 programs)

Pros: Several payment options. Adds three eCommerce pages to the site. Shipping and tax tools. Easy to customize.

Cons: Advanced tools required the paid versions.

Pros: Supports all major international currencies. Allows specified forms to use different currencies. Allows users to view prices and pay with multiple currencies. Automatically fetches the most recent exchange rates.

Cons: Must be used with the Gravity Forms plugin for WordPress.

Pros: Add product filters to your site. Users can search for items. Set alerts for when new products are added.

Cons: Searching by SKU required the Premium version. Stats unavailable in free version.