Have SeatLess build it and hand it over
SeatLess has said publicly that hosting after a build is about $50 a month, or free if you self-host. That figure is their claim, not a quote. Ask.
Deploy SeatLess Sign
A signing system SeatLess builds and hands over.
Done for you by SeatLess
SeatLess installs this and hands the system over. Price is quoted per project. This does not pin the app above higher scores.