Attention. Keep away from Digex = Apitrade = Scam
Do you have any references for your statement? OP is here just to promote their own exchange but in the name of comparing other exchanges. From the table that they have provided, we can easily understand their intention.
By "Apitrade", you mean API functionality of exchanges? Or it is all about another exchange from digex? I am sorry I could get your point exactly in what sense you are mentioning here.
API is good for the developers like automation or data extractors hence we cannot rush into any conclusion just because of API thing. Moreover, I have seen people are looking for API functionality as their one of criteria before choosing an exchange.
The admins of this exchange are scammers
Previously, they launched an Apitrade bot
https://bitcointalk.org/index.php?topic=3231396.0And users there lost tens of thousands of dollars

Also, in their telegram channels admins block non-loyal and outraged customers
And now the admins have opened a new scam project Digex Exchange.
And I just wanted to let people know to stay away from it, because Digex = Apitrade = Scam