When comparing eggPlant Function vs T-Plan Robot, the Slant community recommends T-Plan Robot for most people. In the question“What are the best generic (image based) GUI functional test frameworks?” T-Plan Robot is ranked 1st while eggPlant Function is ranked 2nd. The most important reason people chose T-Plan Robot is:
Uses Tesseract OCR for image text recognition.
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Pros
Pro One of the most feature complete
Pro Text recognition
eggPlant Function uses OCR technology to recognize text in images. It also supports different languages including Russian and Chinese.
Pro Text recognition
Uses Tesseract OCR for image text recognition.
Pro Can inspect most GUI
Can introspect controls of apps written in popular platforms like .NET, Java and HTML for example.
Pro Has an open source edition
For everyone who prefers using free and open source software, version 2.x is available as OpenSource. Current enterprise edition is version 4.x so it's missing some features like Java-API, new look & feel and may be unmaintained.
Cons
Con Unknown yearly subscription fee
Although there's a free trial, in order to be able to use eggPlant Functional fully you need to pay a yearly subscription fee which is not clear and nor is it available on the site. You need to contact the eggPlant team to get the price information.
Con Main features in paid edition
The free version is possibly unmaintained since early 2013 and only the paid version seems to remain active.