Pencil AI Vs. Smartly.io Vs. Mai.co Vs. groas In 2026: Which AI Ad Tool Is Actually Autonomous?
Pencil AI, Smartly.io, and Mai.co are popular AI advertising tools, but none of them manage Google Ads campaigns end to end. This in-depth comparison breaks down what each option actually does, where the gaps are, and why groas is the only truly autonomous Google Ads management service in the group, combining 24/7 AI execution with a dedicated human account manager.