Questions · Video software
Perpetual licence or subscription?
They are two ways of spreading the same cost over time, and the choice depends on how the company buys. The perpetual one is a big purchase at the start, you use it as long as you like, and on top of it you pay an annual software contract that gives you the updates and the manufacturer's support. The subscription is a fee that includes updates and the right to use, and there is no licence left if you stop paying.
The perpetual one fits where there is capital budget and the installation is stable, and where it matters that the system keeps working even if one year the maintenance is not renewed. The subscription fits where predictable running costs are preferred, where the number of cameras moves about, and in cloud-hosted systems, which are almost always licensed that way.
The sums have to be done over several years and not over the first one, because past a certain point the two curves cross. And you have to put into the sums what usually gets left out: what happens to the renewal price when it comes round, and whether the licences you buy today are good for the major version that comes out in a few years or have to be upgraded.
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A written answer is enough to decide whether it interests you. To know whether it works at your site you have to see it on a real scene, with the image as it is and, on top of it, what the system understands from it. That is on the IRIS Neural website, which is the group's product.