I've made this chart after getting several requests in the last few days, all asking which Joomla E-Commerce they should use. There's no right answer as the two main shopping carts, Virtuemart and iJoomla Digistore, are both very different.

There are two other shopping carts available that look like they may become contenders:

• Freeway is an enhanced modification of osCommerce and thanks to Damian, the lead developer, I've been able to create a column for it also.
• IXXO is a commercial script I haven't had the chance to fully test-drive yet. It costs nearly $300.

If any major features have been missed and need comparing, drop a note in the comments.

	Virtuemart [-]	Freeway [-]	Digistore [-]
Website	Virtuemart.net	OpenFreeway.org	iJoomla.com
Demo Site	Click for Demo	Click for Demo	Click for Demo
Cost	Free	Free (commercial support available)	$79.95
Native / Bridge	Native	Bridge	Native
Joomla Versions	1.0 and 1.5	1.5	1.0 and 1.5
Gateways (Included)	2Checkout, eProcessingNetwork, PayMeNow, Dankort/PBS, eCheck.net, eWay, iKobo, iTransact, NoChex, PayMate, PayPal, Verisign PayFlow Pro, WorldPay	Net Registry, VirtualPay, Authorize.net, Cheque/Money Order, Cash, Bank Transfer Payment, Wallet Payment, Internal Only, ANZ Bank, Bank Transfer Payment, Cash on Delivery, Commonwealth Bank, Cybersource Payment, PayPal, Paypal / Credit Cards, 2Checkout, Realex, Credit Card, WestPac Payment	Paypal
Gateways (Commercial)			Authorize.net, 2CheckOut, PayPal Pro US, Pecunix, Payer (Pay
Shipping	InterShipper, UPS, USPS, FedEx, Canada Post	AusPOST International Parcel Post - AIR, AusPOST International Parcel Post - Economy, AusPOST Express Post Parcel, AusPOST International Parcel Post - SEA, AusPOST Contract, AusPOST Standard, Federal Express, Flat Rate, FREE SHIPPING, Per Item, Shipping, Skynet, Table Rate, United Parcel Service, United States Postal Service, Zone Rates	USPS, UPS and FedEx
Affiliate	VM Affiliate ($80.00)	No	Integrates with IDevAffiliate ($99.99)
SEF URLs	With sh404SEF / Artio / SEF Advance etc.		On 1.5 version
Metadata	With sh404SEF / Artio / SEF Advance etc.
Multi-lingual	Works with Joomfish	Yes, with language files completed
Multiple Currencies	Customers can choose currency
Google Analytics	Yes with extra module		Yes, with included module
Tax	Yes, multiple rates possible		Yes, but only one rate
Inventory / Stock	Yes, realizes how many products are left in stock		Yes, realizes how many products are left in stock
Templates / Skinnable?	Since version 1.1, VM has become much easier to design with and its now possible to design templates.	Yes, but harder than Joomla	Some layout modifications possible.
Encoded
Discount Coupons
Downloadable Products
Use as Catalog
Overall	Virtuemart is a complete shopping solution with all the of features found in products such as OSCommerce and Zen Cart. For a full-blown e-commerce site, its the only choice, but it may be too complicated for smaller set-ups.		Digistore is very simple and straight-forward. We use it for our store (see top menu) and it works flawlessly. Clients find it easy to understand and work with, although those that want more advanced features do need to move to Virtuemart.