Hi :) I've been a long time user of Battery Bar Pro. Thank you! Its one of the first apps that I install on my new computers. What would be the best way to do a feature request/bug report?
IMHO you could very easily raise the price to $15 and probably not lose any sales. Having a low price still has to overcome the concern of trusting your credit card to some website. Once someone has overcome that hurdle, 8 vs 15 is a tiny difference. I had software I sold at $25 originally and eventually had it at $99. Also, price signals quality.
This kind of small tools is what I've been thinking of doing lately. It should not consume much of your time after you deploy it and there's not need to have a server and dealing with people's data..
Small question: how do your users find your product?
When I first started, I was posting about it in various laptop forums and running Google Ads. Having a free version was extremely helpful (there are hundreds of thousands of free users). It spread via word of mouth pretty quickly.
After a while, I just stopped all marketing efforts and now it's all just word of mouth/google search.
This looks really cool, and I'm particularly impressed that it's a one-time purchase for lifetime access and you're still able to make this much off of it (and at a very reasonable price point). Congrats all around.
Best part: it also shows battery health really well with discharge charts and can track multiple batteries (if you still have a laptop with which you can swap...).