What extension edition should I choose for my Magento?

What extension edition should I choose for my Magento?

The choice of the Amasty module edition should correspond to the Magento edition you use: Open Source/Community, Commerce/Enterprise, or Commerce Cloud. In other words, if you use:
→ Magento Community, then you need the Community edition of the extension;
→ Magento Commerce (Enterprise), pick the Enterprise extension edition; 
→ Magento Commerce Cloud, pick the Magento Cloud extension edition. 

Higher cost of Enterprise and Commerce Cloud editions is dependent on testing resources, as Enterprise & Cloud extensions are developed and tested with regard to all the embedded peculiarities of the Magento editions and their exclusive features.

Please be advised that the functionality of different extension editions is identical. Enterprise or Cloud packages do not offer extra features.