Subscription brands on Amazon effectively run two subscription programs: their own, and Subscribe & Save. They share a customer base, compete on price, and behave differently over time. Treating them as unrelated is how margin leaks between channels.
Compare cohorts, not totals
Total subscriber counts and monthly revenue say little about health. The meaningful unit is the cohort: customers who started in the same period, tracked over time. Cohorts reveal how quickly subscribers churn, how much they spend, and how that changes by channel and offer.
The meaningful unit is the cohort, not the total.
The metrics that matter
- Retention curves. What share of a starting cohort is still ordering after three, six, and twelve months in each channel?
- Effective discount. The real price paid after subscription discounts, coupons, and promotions, compared across channels.
- Contribution per order. Amazon fees and fulfillment costs differ from your DTC costs, so the same price produces different margins.
- Lifetime contribution. Retention multiplied by contribution per order, not lifetime revenue.
Understand the cannibalization question
When a DTC subscriber moves to Subscribe & Save, the brand may keep the customer but lose margin and the direct relationship. When an Amazon shopper becomes a subscriber who would never have bought DTC, the channel is genuinely additive. Both happen, and they need to be measured separately.
Signals to watch include changes in DTC churn after Amazon pricing changes, and overlap in branded search between channels.
Price architecture across channels
Price gaps between channels drive migration. A deep subscription discount on one side and full price on the other invites customers to switch. A deliberate architecture sets prices, pack sizes, and offers so each channel plays a defined role rather than undercutting the other.
Some brands use channel-specific bundles or pack sizes, so the offers are comparable in value without being identical in price.
Making the decision
The goal is not to maximize subscribers on either platform. It is to maximize total lifetime contribution across both. That usually means accepting that Amazon is the best acquisition engine for some customers, while protecting the direct relationship with the customers who were always going to buy from you.