Does prodigy support Portuguese language for entity and pos tagging.
Sure! Prodigy itself is completely language-agnostic – and if you want to use it with spaCy, it’ll work with all languages currently supported by spaCy, including Portuguese 
Is it possible to get trial version of prodigy tool? whats the process to get trial version? Does POS tagging also supported by prodigy
Yes, you can also use Prodigy for collecting data to train a part-of-speech tagger. See here for an overview of the features:
You might also want to check out the documentation and usage examples here:
Since Prodigy works completely offline and never "phones home", we don't have an official, time-limited trial version. However, feel free to send us an email to contact@explosion.ai, maybe we can work something out 