The PICTools Photo SDK starts at $6,000 for a single development license and requires distribution licensing. All features are available for the 32-bit Windows platform, and many are available on additional platforms.
Toolkits are sold separately for each operating system. For example, PICTools Photo for 32-bit Windows is a separate download and a separate purchase than PICTools Photo for 64-bit Windows.
Environments not currently supported can easily be ported for a reasonable fee.
PICTools is licensed per opcode used.