Adding a 30%-off web option next to IAP: paid conversion 6.3% to 5.9%

LostPaywall · 2025-05

Adding a web subscription at 30% off the annual price next to in-app purchase lowered conversion to paying from 6.3% to 5.9% on Dipsea's paywall.

RevenueCat ran the test on Dipsea, the audio stories app it owns, and published it on the RevenueCat blog.

Trial-to-paid rose, but not enough to make up for fewer trial starts.

6.3% → 5.9% conversion to paying
  • Conversion to paying: 6.3% to 5.9% (198 vs 187 paid customers). A small loss.
  • Initial conversion: 27.0% to 23.5%. The second option meant fewer trial or subscription starts.
  • Trial-to-paid: 25.0% to 28.2%, the best of all variants.
  • Proceeds per user: about $2.09 vs $1.94 at a 30% store fee, so the discount ate the fee savings.

The change

Control (A)
close
image
title
benefits
Annual $69.99
Monthly $12.99
In-app purchase
Variant (B)
close
image
title
benefits
Annual $69.99, 7-day trial
Monthly $12.99
In-app purchase
Save 30% on webNEW
Web annual $47.99NEW

A second button offers a 30%-off annual plan on the web next to in-app purchase.

Simplified mockup drawn by LiftArchive from the shared screenshots.

Control

A clone of Dipsea's native paywall with Apple in-app purchase only: $69.99 annual, $25.99 quarterly and $12.99 monthly.

Variant

The paywall offered both an in-app purchase with a 7-day free trial and a web annual plan at $47.99, a 30% discount, behind a "save 30% on web" button.

Why it likely lost

Our reading of the result, not the practitioner's claim.

  • Two buttons make for a harder choice, and some users who tapped the web option dropped off in the browser.
  • The 30% discount may have drawn users who meant to pay, which fits the higher trial-to-paid.
  • Matching the store fee with a discount leaves no margin gain on web purchases, so any lost conversions cost money.

Caveats: About 3,100 new US iOS users per variant over about three weeks, in one app; the gap in paid customers is small (187 vs 198). RevenueCat sells the web billing product tested.

Who ran it

RevenueCat ran this test for Dipsea. Source: RevenueCat blog. The numbers are theirs; the summary and commentary on this page are ours.

Read the original source →

How to run this test on your app

Hypothesis
If we add a discounted web subscription next to in-app purchase, then proceeds per user will rise, because some users will choose the cheaper web plan and we keep more of each sale.
Primary metric
Net proceeds per new user after store and payment fees
Guardrails
  • Initial conversion rate
  • Conversion to paying
  • Renewal rate by purchase channel
Who should test it
US apps that must keep in-app purchase but can link to web checkout, and pay the full 30% fee. Try smaller discounts too; a 30% discount gives back all the fee savings.

Questions

Does offering both options beat in-app purchase alone?

Not here. It landed between IAP-only and web-only on paid conversion and earned slightly less per user.

How big should a web discount be?

This test used 30%, which cancels out the store fee savings.

RevenueCat suggests testing smaller or no discounts to see if the trade-off improves.

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