I’m not sure I would use it for my personal projects, but I can see how it might be useful in an enterprise setting or for someone with a larger amount of servers.
Howwever, for (internal) enterprise use it would need to be something you can install on your own servers which gives you a web page you to see all cron jobs on all (other) servers. Desktop clients are more tricky to scale/distribute in an enterprise environment, desktop app is maybe mostly useful for a single person or a small team.
I think the app (as it looks from the screenshots) adds a nice convience compared to checking crontab manually via SSH, but for me it’s not a big enough pain that I would pay to have it solved. If I had a larger amount of servers and/or was more heavily relying on cron jobs, it might be a different.
However, my biggest concern (for me, as a potential user), is not whether I would need tha app or not (as it would probably be quite useful), but whether it actually is easy to set up and use.
Cronbar uses SSH to check your servers cronjobs. No clients you need to install. It just works.
Will this statement be true for my setup, with Cygwin, OpenSSH and key-based login to servers? Will it use Cygwin’s OpenSSH and read ~/.ssh/config from the correct Cygwin home directory?
On Windows there are multiple ways to set up SSH (Cygwin, PuTTY, MSYS/MinGW, Git, WinSCP, etc.). To actually require “no” setup, one would expect the app to work with the user’s existing SSH tools, whatever they may be.
If you have actually solved these various SSH setup scenarios it would be a big selling point, so make sure to inform about them on the marketing page.