Compare and Purchase

Buy the Phase Equilibria Diagram version that best fits your needs.

Select the product below to order online. All prices are in USD and do not include shipping, tax (VAT, HST, etc.), or other government fees.

Format and DiscountsSingle-userMulti-user
(up to 10 simultaneous)
(unlimited, IP authentication)
PHASE Online (ACerS Members)$1,275$1,995$1,995
PHASE Online$1,375$2,095$2,095
PHASE USB 5.1$1,295$2,495N/A
PHASE USB 5.1 (Upgrade from V5.0)
*NEW* pricing for updates on current version software
PHASE USB 5.1 (Upgrade from V4.5)$565$1,025N/A
PHASE USB 5.1 (Upgrade from V4.4)$845$1,545N/A
PHASE USB 5.1 (Upgrade from V4.3 or older)
*NEW* pricing for current owners of very old version


Not sure which product is right for you? Check out the table below for a side-by-side comparison.

Trusted, comprehensive
Use a Windows® PC
Use a MAC or other OS
Physical drive
Web-based with username/password
Web-based with IP authentication
(library version)
No internet access available
One-time purchase
Yearly subscription
Free updates
Paid updates

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