I use Kagi and never pay more than $10/mo even though I use it a lot. I think most people don’t know how much they search in a month, so the pricing can be confusing.
I have the early adopter pro plan, which gives me extra searches (1500 instead of 1000), but for reference, I averaged 1044 searches/mo over the past 6 months (not counting this month). So if I had the standard pro plan, I’d have paid $10.66 per month on average.
The unlimited plan seems excessive to me, unless you’re playing with the API or something like that.
That’s why you should always search for or file a bug report before trying to create a fix.