My software is freeware programs. You can use this software without any fees to pay.
Let mention though that to be able to offer you the programs in this state I’ve used a lot of my spare time during the last years. Of course, I have to pay the a hosting including the traffic that isn’t very low, software licences etc.
So if you like my programs and find them useful I would be very happy if you consider donating to the projects. Any sum: $1, $2, $5 or whatever you can.