There seems to be no literal translation of "synap". Maybe it's a spin off of "synapse". which is thus:

The definition of a synapse is the junction between two neurons or nerve cells where there is a small gap that neurotransmitters help nerve impulses to cross.

Also, EDIG is not the only busines entity to use the word. This is one.....there may be more.

 https://en.wikipedia.org/wiki/Synap

EDIG labels Synap as a trade mark, however:

"The trademark designation notifies others that the product’s name and design are the company’s property. However, this trademark does not protect the company from another company that produces a similar product or uses a similar name." 

That'll be $1.97 please. No checks.