Best AI visibility tool for small businesses & solo marketers

Lowest published entry prices with daily tracking or free trials. Shortlist from published vendor data (not a paid ranking):

1. Rankscale — $17/mo (Essentials, yearly only); Pro $99/mo
2. OtterlyAI — $29/mo (Lite, 15 prompts)
3. ziptie.ai — From $42.75/mo (Starter preset; usage-built)
4. Knowatoa — $59/mo (Starter)
5. Writesonic — $79/mo billed annually (Starter, 50 prompts)