Marketing glossary

This glossary defines 27 essential marketing terms in plain language — from outcome-based marketing and ROAS to LTV, attribution modelling, and CRO — covering the concepts that underpin Pinstorm's outcome-based marketing model and the broader performance marketing landscape. [Wikipedia: Performance-based advertising]

For a deeper dive into how we apply these ideas, explore our beliefs. For industry research on performance marketing trends, see eMarketer's digital advertising research.

ARPU (Average Revenue Per User)

The average revenue generated per user over a given period, calculated by dividing total revenue by the number of active users. ARPU is a key metric in SaaS, subscription, and D2C businesses for evaluating monetisation efficiency and guiding pricing strategy.

Attribution Modelling

The analytical framework used to assign credit for a conversion or sale to the marketing touchpoints that influenced it. Common models include last-click, first-click, linear, time-decay, and data-driven attribution. Accurate attribution is essential in outcome-based marketing because the agency's compensation depends on proving which activities drove revenue.

CAC (Customer Acquisition Cost)

The total cost of acquiring a new customer, calculated by dividing total marketing and sales spend by the number of new customers gained in a given period. A key metric for evaluating the efficiency of growth campaigns.

Conversion Rate Optimisation (CRO)

The systematic process of increasing the percentage of website or app visitors who complete a desired action — a purchase, a sign-up, a qualified lead form submission. CRO uses A/B testing, heatmaps, user session analysis, and funnel analytics to remove friction and improve commercial outcomes without increasing traffic spend.

D2C Marketing (Direct-to-Consumer)

A marketing and distribution model where brands sell directly to end consumers, bypassing traditional retail intermediaries. D2C marketing relies heavily on digital channels — paid social, search, email, and owned e-commerce — and is measured by metrics such as CAC, LTV, ROAS, and contribution margin. Pinstorm has driven D2C growth for multiple brands using outcome-based compensation.

Equity Stake

An ownership share in a client's business taken by the agency in lieu of — or in addition to — cash fees. Pinstorm takes equity stakes in selected clients, aligning the agency's long-term financial interest with the client's enterprise value. This is the most extreme form of skin in the game: the agency profits only when the company itself becomes more valuable.

Full-funnel Ownership

An approach where the agency takes end-to-end responsibility for the entire marketing funnel — from awareness and traffic acquisition through to conversion, retention, and revenue attribution. No hand-offs between teams or vendors.

Growth Marketing

A data-driven approach to marketing that focuses on the entire customer lifecycle — acquisition, activation, retention, referral, and revenue — rather than top-of-funnel awareness alone. Growth marketing combines paid media, product experimentation, CRO, and lifecycle automation to drive compounding, measurable business growth.

LTV (Customer Lifetime Value)

The total net revenue a business expects to earn from a single customer over the entire duration of their relationship. LTV is calculated by multiplying average purchase value by purchase frequency and average customer lifespan, then subtracting acquisition and servicing costs. A high LTV-to-CAC ratio indicates a healthy, scalable business model.

Marketing Funnel

A model that describes the stages a potential customer moves through — awareness, consideration, conversion, retention, and advocacy — on the path from first exposure to long-term loyalty. In outcome-based marketing, the agency owns every stage of this funnel and is measured on the revenue generated at the bottom, not the impressions generated at the top.

Media Buying

The process of purchasing advertising inventory — across search, social, display, video, and programmatic channels — to reach a target audience at the lowest effective cost. In an outcome-based model, the agency deploys its own media capital, making media buying a direct investment rather than a pass-through expense.

MRR (Monthly Recurring Revenue)

The predictable, recurring revenue a subscription-based business earns each month. MRR is the primary growth metric for SaaS companies and is calculated by multiplying the number of paying subscribers by the average revenue per account. Pinstorm uses MRR growth as a core KPI in SaaS go-to-market engagements.

Outcome-based Marketing

A marketing model where the agency or partner is compensated based on actual business results — revenue growth, customer acquisition, or return on ad spend — rather than time billed or media placed. Pinstorm has operated on this model since 2004.

Performance Marketing

A broad category of digital marketing where advertisers pay only when a specific action occurs — a click, a lead, a sale. It is measurable by design and forms the operational backbone of outcome-based models.

Performance vs Outcome-Based Marketing

Performance marketing pays for measurable actions — clicks, leads, installs — regardless of whether those actions generate revenue. Outcome-based marketing goes further: the agency's compensation is tied to actual business results such as revenue growth, ROAS targets, or CAC ceilings. Performance marketing optimises for activity; outcome-based marketing optimises for commercial impact.

Qualified Lead

A prospect who has been evaluated against defined criteria — budget, authority, need, and timeline (BANT) or equivalent — and determined to have a genuine likelihood of becoming a paying customer. In outcome-based marketing, lead quality matters more than lead volume because the agency's revenue depends on downstream conversion, not just form submissions.

Retainer Model

The traditional agency billing structure where the client pays a fixed monthly fee regardless of the results delivered. The agency's revenue is decoupled from the client's business outcomes, creating a structural misalignment of incentives.

Revenue Share

A compensation structure where the agency earns a percentage of the client's revenue generated through the campaigns it manages. This replaces traditional fixed retainers and aligns the agency's incentive directly with the client's commercial success.

ROAS (Return on Ad Spend)

A metric that measures the revenue generated for every unit of currency spent on advertising. For example, a ROAS of 5× means the campaign generated $5 in revenue for every $1 spent on ads. It is the primary efficiency metric in performance and outcome-based marketing.

SaaS Go-to-Market (GTM)

The strategy a software-as-a-service company uses to bring its product to market and acquire customers. SaaS GTM combines product-led growth, paid acquisition, content marketing, and sales enablement, measured by metrics including MRR, CAC payback period, and net revenue retention. Pinstorm structures SaaS GTM engagements around MRR growth with outcome-based compensation.

Skin in the Game

A principle where the agency invests its own capital — media budget, time, resources — into a client's campaigns, sharing both the risk and the reward. If the client doesn't grow, the agency doesn't get paid.

Unit Economics

The direct revenues and costs associated with a single unit of a business — one customer, one transaction, or one subscription. Healthy unit economics (where LTV significantly exceeds CAC) are a prerequisite for scalable growth. Outcome-based agencies evaluate unit economics before accepting an engagement to ensure campaigns can deliver profitable returns.

Contribution Margin

The revenue remaining after deducting variable costs directly attributable to a product or campaign. Contribution margin is a critical metric for evaluating the profitability of individual marketing channels and is used alongside ROAS and CAC to optimise spend allocation in outcome-based marketing.

Programmatic Advertising

The automated buying and selling of digital advertising inventory using software platforms and real-time bidding. Programmatic advertising enables precise audience targeting and efficient media buying at scale, and forms a significant component of the media investment in outcome-based marketing campaigns.

Net Revenue Retention (NRR)

The percentage of recurring revenue retained from existing customers over a given period, accounting for upgrades, downgrades, and churn. An NRR above 100% means the business is growing revenue from its existing customer base without acquiring new customers. NRR is a key SaaS health metric tracked in outcome-based engagements.

Marketing Attribution Window

The time period after a marketing touchpoint during which a subsequent conversion is credited to that touchpoint. Attribution windows vary by channel and business model — typically 7–30 days for paid social and up to 90 days for B2B SaaS. Setting appropriate attribution windows is essential for accurate outcome-based compensation.

Blended CAC

The average cost of acquiring a customer across all marketing channels combined, including both paid and organic sources. Blended CAC provides a holistic view of acquisition efficiency and is used alongside channel-specific CAC to guide budget allocation and evaluate overall marketing performance.