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Company / Author[edit]

Austhink Software Pty Ltd

What they say[edit]

“Reason!Able, the precursor to Rationale(tm), is no longer available for general purchase.

If you have a specific requirement or special desire to use Reason!Able instead of Rationale, a thirty day trial version is available for download.

If you already have a Rationale license, and need to use Reason!Able beyond the 30 day trial period, please contact us, and a license may be made available to you.”


Gone but still available in some circumstances – see What they say

Their website[edit]

Operating System(s)[edit]


Price: n/a  |  Status: Historical (defunct)  |  Date added: 2007-12-22

For free information about visual thinking techniques, visit the
Visual Thinking Center