Paid AI-visibility platforms ($99-$499/mo) do one thing: run ~25 prompts through each LLM, grep the responses for your brand, and report share-of-voice. You can do the same thing by hand in an hour with the free tiers of ChatGPT, Claude, Perplexity, and Gemini. This tool generates the pack and the scoring worksheet. No API key. No subscription.
The more specific the niche, the more the prompts mimic how real buyers actually search. Competitors = the names you want to see appearing vs. yours in the answer.