I found a data coin wallet that could be useful for anyone that is new or looking for storage it looks pretty good. Didn't know if you had seen it already. IDK if it qualifies but thought it might be helpful.
What do you mean, 3rd-party datacoin wallet?
At the moment it's in its early stages but basically it's the startup of a data coin wallet and it has free download for you to try out if you want. I was just looking and found it and thought you might want to have a look. It seems to be a third party but there is no charge involved so this is the trial period. Take a look