# Integrations

URL: https://winbackhq.com/integrations/
Updated: 2026-10-17

Winback / Integrations

Integrations

# Integrations

Winback reads subscription events from RevenueCat or Stripe, and writes messages you can send from the email tool you already use. Each card below says exactly what is read, and what is not. Winback never writes to your billing system.

Updated 17 Oct 2026

## Where the data comes from
During early access we connect the webhook with you by hand. To try it first with nothing connected, upload an export to the planner; it runs in your browser and uploads nothing.

Billing source

### RevenueCat

Reads: webhook events CANCELLATION, EXPIRATION, BILLING_ISSUE, INITIAL_PURCHASE, RENEWAL and UNCANCELLATION. From each event: app user id, product id, period type (to spot trials), store, price and currency, and event and expiry times. An email address only if you store one as a subscriber attribute.

Planner: a RevenueCat customer export.

Never: changes subscriptions, grants access or creates offers.

RevenueCat win-back →

Billing source

### Stripe Billing

Reads: webhook events invoice.payment_failed, invoice.paid, customer.subscription.updated and customer.subscription.deleted. From each: customer id, customer email, price, interval, subscription status, cancel and trial end dates.

Planner: a Stripe subscriptions export.

Never: creates coupons, changes subscriptions or issues refunds. You create any coupon yourself.

Stripe churn recovery →

Store offers

### App Store: win-back offers

Reads: nothing from Apple. Winback does not connect to App Store Connect. You give us your win-back offer URL and the eligibility rules you set (paid duration, time since lapse, wait between redemptions). App Store subscription events reach Winback through RevenueCat.

Does: puts the offer URL in messages to people your rules cover. Offers need iOS 18+ and StoreKit 2 (source).

Apple win-back offers guide →

Store offers

### App Store: Retention Messaging

Reads: nothing. Guide only Winback does not answer Apple's Retention Messaging calls today.

What it is: your message, image and optional offer on the iOS cancel screen; your server must answer within 700 ms; approval required (source).

Retention Messaging guide →

Store offers

### Google Play: developer-determined offers

Reads: nothing from Google directly. Google Play subscription events reach Winback through RevenueCat, the same as App Store events.

Does: if you set up an offer in Play Console whose eligibility your app decides, Winback's segments tell you who to show it to. Billing failures are 31% of Play cancellations against 14% on the App Store (RevenueCat SOSA 2026).

Churn statistics →

Sending

### Email tools that take a CSV

Reads: nothing. Winback writes; your email tool sends. The planner exports a CSV with one row per person: their address, segment, the personal message and their unique return code.

Works with: Resend, Postmark, Loops, Customer.io, Mailchimp, or any tool that can import a CSV and print a custom field in a template.

Make a CSV in the planner →

## At a glance

 | | Integration | How | Writes to it? | Status

 | RevenueCat | Webhook, or customer export in the planner | No | Early access

 | Stripe Billing | Webhook, or subscriptions export in the planner | No | Early access

 | App Store win-back offers | You paste the offer URL and rules | No | Early access

 | App Store Retention Messaging | Not connected | No | Guide only

 | Google Play | Through RevenueCat | No | Early access

 | Email tools | CSV from the planner | No | Available

Winback is new. During early access every connection is set up by hand with you, and you approve the first batch of messages. Pricing: no monthly fee, 15% of revenue from subscribers who come back, for 6 months. See pricing and Winback vs Churnkey.

## See who you could win back this month

Upload a RevenueCat or Stripe export to the planner. It sorts lost subscribers into cancelled, billing failed and trial expired, writes one message per person with a unique return code, and gives you a CSV. Files stay in your browser. Want us to set it up with you instead? Early access is open, and you pay nothing until someone comes back.

Plan a win-back in your browser →Get early access