What are some different pricing models?
First of all, there are two different pricing models; one-time fee and subscription based fee. At the first glance, one-time fee seems a better option because all you have to do is pay one-time fee and you are done. Yet there is a little twist in the story; most of the monitoring apps and services with one-time fee do not come with technical support, so after buying those apps and software, you are on your own. On the other hand, one-time fee is ridiculously high as compare to the subscription fee. If you have a Windows based system then check out top 10 Windows spy apps.
Most of the subscription based monitoring apps and services offer different plans for different time period; for example subscription plans are available for 1 month as well as 3, 6 and 12 months time period. This way users can select the subscription plan according to his/her needs as well as according to the budget they have. On the other hand, longer subscription plans are likely to be less expensive then shorter plans.