AARRR stands for Acquisition, Activation, Revenue, Retention and Referral. Dave McClure introduced it in 2007 as "Startup Metrics for Pirates". It stuck because it is simple: five stages, in order, each with numbers you can count.
GrowthHub builds one growth model for each client on these five stages. Then 167 AI agents run experiments against it, week after week.
How do buyers find you?
Acquisition is the top of the model. It covers every way a buyer first meets you: an ad, a search result, a cold email, a trade fair. The agents here find the accounts, write the message and watch the competition.
Do they take the first real step?
Activation is the moment interest becomes intent. A visitor books a demo. A lead replies. The agents here check that the page matches the ad, the message fits the buyer and the lead is worth a call.
Do they pay, and how much?
Revenue is where the model meets the bank account. In B2B the work that wins the deal is the work that keeps it: follow-up, proof, the right offer at the right time. So Revenue shares its agents with Retention and we do not count them twice.
Do they stay and buy again?
Retention is the cheapest growth there is. The agents here spot accounts that are going quiet, bring lost customers back and listen to what buyers say after the sale.
Do they bring others?
Referral closes the loop. Happy customers, respected voices and good stories send new buyers back to the top of the model. The agents here find the champions and give them something worth sharing.
A review from Retention becomes ad copy in Acquisition. A lost deal in Revenue becomes a win-back in Retention. Separate agencies never see that.
More traffic does not help if leads never book a call. The model shows which stage is losing customers, so the next experiment goes there.
Each test belongs to one stage and one metric. When it ends, you know what moved. Nothing runs outside the model.
Book a free intro call. We look at your numbers together and mark where each stage stands.
We take 3 new clients a month. One seat is left.
