Appier Group, Inc. (OTC: APPIF) is one of the fastest-growing agentic AI stocks to buy. The most interesting part about Appier is that the company is not merely describing itself as an AI software vendor in the vague, overused sense. The company now explicitly brands itself as an “Agentic AI-as-a-Service” provider, and on March 16, Appier released a whitepaper focused on autonomous marketing, framing agentic AI as a system for planning, execution, and continuous optimization rather than simple assistance. ...