Camtasia Studio 9 is great for creating tutorials, presentations, and for light to medium-duty video editing. This months software Humble Bundle includes Camtasia Studio 9, Snaggit Pro, and a few more for $20. Click here to have a look.
Camtasia and Snaggit for $20
Camtasia 2018 (the newest version) is a subscription license-only program, while Camtasia Studio 9 (the version in this bundle) is a one-time license program. Thus, this is actually for a permanent license (unless I'm unaware of a Studio 9 subscription license).