Buy SimLab Sharing Keys
SimLab offers a standard pricing method for all kinds of sharing however it can be very customizable.
Paired Devices1 device
A user can charge his account with keys, the keys can be used to extend the expiration time or to expand the limits so the number of keys that the user should buy depends on his usage.
10 $/month (paid annually)
You buy a number of keys corresponding to as much you want to raise your could capacity, in this case your expiration date will not be affected.
If your expiration date is getting closer you need to buy a number of keys that cover your usage at least.