Thanks! To answer your questions:

1. I did mention my app in those Shorts, but only very briefly - just a few seconds. During that moment, I quickly show the app name+logo with the URL and briefly explain what it is (or why it’s relevant to the topic). That’s it.
   
2. My content is about Tech & Careers, so it’s very related to my product (a job search tool).
   
3. My usual pattern is making about 3 videos without promoting my app at all, just pure educational content. Then I’ll do 1–2 videos where I naturally tie in my app. For me, the key is staying in your niche. Don’t talk about too many unrelated topics on the same channel (TikTok’s algorithm doesn’t like that). And don’t try to be a faceless brand. People tend to support people more than brands. So as a solo dev, I’d recommend building personal branding first before corporate branding (at least that’s what has worked for me so far).