radius.ac
    Case Study

    From $150 CPL to a self-sustaining inbound engine

    radius.ac is an AI-powered app for educators operating in a crowded EdTech market. Growth relied heavily on paid acquisition, with cost per lead climbing to ~$150 and limited long-term ROI.

    We rebuilt their growth engine around Content RevOps — using programmatic content as a revenue-facing system rather than a traffic play. Within 3 months, organic traffic increased by over 600%, CPL dropped by 70%, and inbound became the primary source of new revenue.

    Industry:EdTech / AI SaaS
    Sales motion:Self-serve + light sales assist
    Buyers:Educators
    Sales cycle:Short–medium, trust-led
    Core constraint:High paid acquisition costs

    The situation

    radius.ac had a strong product and clear demand, but growth was fragile.

    Paid acquisition was doing most of the work. When ads were on, leads flowed. When spend paused, growth stalled.

    At $150 CPL, scaling further meant rising CAC, unpredictable pipeline, and increasing dependence on PPC. The business needed a growth engine that compounded instead of resetting every month.

    The problem

    Cost per lead had reached ~$150

    PPC accounted for the majority of sign-ups

    Organic traffic was minimal

    Content existed, but wasn't structured to convert

    No scalable way to capture high-intent demand

    Marketing activity was happening — but it wasn't building long-term leverage.

    The solution

    We implemented a Content RevOps system with programmatic content at its core — designed to capture intent, qualify users, and feed revenue.

    1. Intent-led content architecture

    Instead of chasing broad keywords, we mapped hundreds of high-intent, low-competition searches educators were already making (e.g. AI worksheets, lesson plans, classroom tools). Each topic mapped directly to a real classroom problem — not generic "AI in education" thought leadership.

    2. Programmatic content engine

    We built dynamic page templates that pulled from a central content library, generated unique, high-quality pages at scale, and maintained SEO best practices (structure, metadata, internal linking). This allowed rapid expansion without sacrificing quality.

    3. Conversion and revenue integration

    Every page was designed to do more than rank: free, classroom-ready downloads solved immediate problems, gated advanced resources captured email, clear CTAs pushed users toward sign-up or upgrade, and engagement data fed directly into nurture sequences.

    The results (within 3 months)

    As organic demand ramped up, PPC spend was cut in half — while total lead volume increased.

    +0%

    Organic Traffic Growth

    409 → 2,900 monthly visitors

    +0%

    Search Impressions

    13k → 109k

    -0%

    Cost Per Lead

    $150 → ~$45

    $0k

    New Monthly Revenue

    MRR from organic

    0%+

    Organic Sign-ups

    of new users

    Why this worked

    "Content became the top of the revenue funnel — not just a traffic source."

    Programmatic content captured intent at scale

    Every page was designed to convert, not just rank

    Organic replaced paid as the primary acquisition channel

    Content became the top of the revenue funnel — not just a traffic source

    Ready to build your own inbound engine?

    Let's discuss how Content RevOps can reduce your acquisition costs and create sustainable growth.