After logging in this afternoon (2015-07-01), I was greeted with a simple "the noobie plan will be discountinued on August 1, 2015. If you'd like to continue using Voluum, upgrade to a paid plan". Paid plans start at $99 monthly and are still limited as far as tracking is concerned.
As far as I am concerned, this is so bad form: first they provide you free tracking and lure you with totally free service for zeropark traffic users, then after spending a substantial amount of time and effort understanding the platform intricately (there is a bit of a learning curve!) and creating redirection schemes and flows and orchestrating all the traffic into many different campaigns, they pull the trigger and let you standing high and dry!
I clearly understand the economics of providing part of your service for free and I also get the need to survive financially as a company, but simply killilng the very service you used to gain access to customers, is bad form. How would you feel if skype suddenly said, well nice to have all these users, but if you want to use skype in 4 weeks from now, you will need to pay for it.
There is a difference between having customers upgrade to a paid service (which was the case until now) and simply stopping the free part all together.
I guess that is a good opportunity to re-evaluate the tracking market once again. There ARE other players in the market. I suggest you do this too, if you have been relying on the voluum free service so far.