Frankly speaking, I was thinking of much higher costs.
The company is now 'old' and one of the first wallets still alive, it makes a difference.
With the passing years, it's not something so surprising and I find the CAC quite relevant when you look at its reputation and the coverage in the media, etc. They have much more organic traffic than other companies, and mouth-to-mouth certainly works better than elsewhere. Not to mention the affiliate program with the $10 bonus offer (if it still exists) which helps (or has helped) a lot
Personally, I would rather estimate the cost compared to a neo-bank rather than a forex platform.
$1,000 for a brand new company is near out of mind