I purchased one, called solid state devices, registered an email. Gave me some error but logged in and continued to work.
Found a lot of the information useful, despite the fact it was basically free ebook material condensed to fit on a phone. For $1
But the way information is displayed is useless for those without unlimited data. If someone's paying money, that info should be downloaded
rather than having to login to a server just to read. So why didn't I just download the ebooks and not pay $1 to have something eat my data.
Aside from all of that, I purchased a second one. Which wants me to register another email..... You did not put a login, or option to change to login.
You want another email registered for each individual app out of the 100+ apps you have on there
.
So if anybody wants to buy more of your apps they won't work.
If you're working on the updates, at least announce that something's trying to be resolved.