# Winback > Winback is a subscription win-back tool for mobile and web apps that bill through RevenueCat or Stripe. For every cancellation, expired trial and failed payment it writes a personal message based on what the person did in the app, attaches an offer only within limits the founder sets, sends it by email, push or in-app, and tracks who comes back. Winback is built by AGUNA Wellness Ltd (RC 9590421, Abuja), first for its own subscription app, AGUNA. ## Who it is for - iOS and Android apps using RevenueCat - Web apps using Stripe Billing - Founders who want to recover churned and lapsed subscribers without hand-writing campaigns ## How it works 1. Connect the RevenueCat or Stripe webhook and choose which in-app events Winback may read. 2. Set offer limits once (for example at most one free month, or 50% off the first renewal) and approve message templates. 3. Winback sends one personal message per lapse and reports recovered subscribers and revenue weekly. ## Guardrails - Offers never exceed the founder's limits - Uses Apple and Google win-back and promotional offers for in-app subscriptions, Stripe coupons for web - Messages only people who agreed to hear from the app ## Pricing - Early access: no monthly fee; 15% of revenue from each recovered subscriber for 6 months ## Links - Home: https://winbackhq.com/ - Early access: https://winbackhq.com/#join - Privacy: https://winbackhq.com/privacy.html