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Introducing One-Click Upselling and Cross-Selling in Zellify

— Marcus Persson

Introducing One-Click Upselling and Cross-Selling in Zellify
Introducing Upselling & Cross-Selling

For years, subscription apps have been investing heavily in acquisition. The challenge is that acquisition costs keep rising while conversion rates plateau. Growth teams are forced to squeeze more value out of every customer who does convert.

The problem? Most teams leave money on the table at the exact moment when customers are most ready to buy: immediately after checkout.

At Zellify, we’ve built a simple way to fix that.

Why post-checkout matters

When someone completes a purchase, their buying intent is at its highest. They’ve already entered payment details and made the decision to commit. Asking them to consider an additional offer at this moment is natural — and in many cases, welcomed.

Industry research backs this up. McKinsey and other analysts have consistently shown that well-timed upsells and cross-sells can increase revenue by 20–30%. The key is timing and frictionless execution.

Upselling and cross-selling — now built into Zellify

We’ve introduced post-checkout, one-click upsells and cross-sells that you can ship directly in Zellify’s no-code editor.

Here’s what that means in practice:

  • One-click confirmation — Customers never need to re-enter payment details. The add-on is confirmed instantly.
  • Upselling — Offer an upgraded plan, premium feature, or enhanced version of what they already bought.
  • Cross-selling — Present a complementary product or content pack that adds value to the original purchase.
  • Fast setup — Configure and launch offers in minutes using our visual editor.
  • Experimentation built in — A/B test placement, copy, creative, and pricing without engineering effort.
  • Measurable impact — Track ARPU and LTV uplift immediately through your analytics integrations.

Examples of what teams can offer

The power of this feature lies in flexibility. Some examples we’ve seen:

  • A learning app upselling a premium knowledge library after someone subscribes to the base plan.
  • A fitness app cross-selling a nutrition guide alongside a workout subscription.
  • A meditation app offering a sleep stories pack immediately after checkout.

Each of these adds incremental revenue while delivering real value to the customer.

Why we built this

Our mission at Zellify is to give subscription apps the infrastructure to grow beyond the app store. Upselling and cross-selling is a proven growth lever, but historically it’s been hard to implement without custom engineering.

By making it no-code, testable, and measurable, we’re lowering the barrier so any team can start capturing the revenue they’re currently leaving behind.

What’s next

Upselling and cross-selling are just the start. Zellify is building the infrastructure for subscription apps to own every step of the funnel — from onboarding and paywalls to deep linking and attribution.

If you’re ready to stop leaving money on the table and start turning acquisition into long-term revenue growth, book a demo and see Zellify in action.