Best tools for tracking applications? - what worked for you?

I am looking for free tools that do not spam me. This is my first time dealing with any of this. I want reminders to follow up. Are there tools to avoid?

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.

Set a weekly follow-up reminder on your phone. It is free and effective.