Indeed. Restic is just something you apt install and nobody provides you any service (you have to organise your storage space yourself); tarsnap is not simply f

Indeed. Restic is just something you apt install and nobody provides you any service (you have to organise your storage space yourself); tarsnap is not simply free to use for yourself with your own storage. (Not saying it has to be free, but that's what makes it the definition of a service you have to purchase.)