Or you could just ask your LLM for other timer sites that do the same thing. Probably burn fewer tokens that way, since you seem to be so cost-conscious.
While the difference between $3 and $5 can often seem small, I find that the difference between $0 and non-$0 is massive. It completely changes the feel of the thing, suddenly you need to enter a CC number or similar when there was none of that before. Even $1 can be quite painful, especially for software. I'm not walking through a store in a mindset of buying things already, I'm just sitting at home, not planning to buy anything at all.