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ConfiForms add-on is developed and maintained by Vertuna LLC, established in 2005 and based in Estonia, Tallinn. We are Atlassian Verified partner (now the program is called Top Vendor, no now called Silver GOLD level Atlassian partner) since since 2015
You can contact us directly via the button below and we aim to answer you within 48 hours, but in most cases much faster 
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There are no limits on the number of forms and fields per form you can have.
ConfiForms cloud is different, see Data storage types: ConfiForms native vs Atlassian content properties
What is storage format?
When we ask you to provide us with a storage format for your page configuration - this is what we mean.
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