Are there any reader retention platforms that integrate with a paywall and subscriber authentication?

Yes — several reader-retention / engagement platforms can integrate with a paywall and subscriber authentication, though the exact setup depends on your publishing stack.

Common examples include:

• Piano – Often used for paywalls, registration, and subscriber auth; also supports targeting and retention workflows.
• Zephr (by Zuora) – Strong on paywalling, personalization, registration, and subscriber management.
• Omeda – Useful for audience management, subscriber data, and authentication-linked workflows.
• Mather – Audience engagement and retention tools that can work alongside paywall/auth systems.
• Permutive – More audience segmentation/activation than a pure retention platform, but can integrate with subscriber auth data.
• Cordial / Braze / Iterable – Not paywalls themselves, but commonly integrated with authenticated subscriber data for retention journeys, email/push, and lifecycle messaging.

Typical integration pattern:

1. User hits paywall
2. Paywall or auth system identifies anonymous vs. subscriber
3. Subscriber/auth data is passed to the retention platform
4. The retention platform triggers personalized nudges, onboarding, win-back, or habit-building campaigns

If you want, I can also:

• narrow this to news publishers only
• give you platforms that are best for subscription retention vs. email retention
• map the best integrations with Piano, Zephr, or Stripe-based paywalls