Apple Retention Messaging operations

Retention infrastructure for Apple subscription apps.

Sync subscriptions from App Store Connect, manage promotional offers, build retention flows, run A/B tests, and respond to Apple retention requests in realtime - from a single system.

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Runtime: Cloudflare Workers
Config: Immutable snapshots
Latency: p95 <200ms

retention.flow.yml published

rules:
  - name: yearly_winback
    priority: 10
    conditions:
      productId:
        in:
          - premium.yearly
      storefront:
        in:
          - USA
          - GBR
    response:
      offer: SAVE50
      title: Stay with Premium

runtime request live

Apple request

RetainKit runtime

Offer response

{
  "productId": "premium.yearly",
  "storefront": "USA",
  "environment": "production",
  "selectedRule": "yearly_winback",
  "offer": "SAVE50"
}

Problem

Apple gives you APIs. Not an operational workflow.

Retention Messaging requires coordinating App Store Connect promotional offers, subscription groups and SKUs, retention message payloads, realtime Apple requests, runtime routing logic, experimentation, and rollout safety.

Most teams end up with scripts, environment variables, spreadsheets, and manual App Store Connect workflows. RetainKit turns that into a deployable system.

What RetainKit does

Operational primitives for Apple subscription retention.

Sync subscription inventory

Import apps, subscription groups, products, and promotional offers directly from App Store Connect. Detect missing offers, invalid configurations, and inconsistent metadata before deployment.

Build retention routing rules

Define rules based on product ID, storefront, environment, subscription group, or transaction state. Attach promotional offers and localized messaging to deterministic runtime rules.

Respond to Apple requests in realtime

Deploy globally distributed retention endpoints on Cloudflare Workers. Published configs are compiled into immutable runtime snapshots for low-latency evaluation.

Apple RetainKit Runtime Offer / message response

Run retention experiments

Test multiple offers, messages, and retention strategies safely. Compare retention flows by storefront, product, or rollout group without redeploying backend code.

Validate before publishing

Detect missing promotional offers, unreachable rules, invalid priorities, localization gaps, and broken flow configurations before they hit production.

Observe runtime decisions

Inspect retention request routing, latency, selected rules, and fallback behavior from a single dashboard.

Runtime architecture

Built for realtime retention requests.

Apple retention requests are latency-sensitive. RetainKit separates configuration management from runtime evaluation to keep request handling deterministic and fast.

Runtime requests never depend on App Store Connect APIs. Published retention flows are compiled into immutable runtime configs distributed globally through Cloudflare KV.

App Store Connect apps, products, offers

RetainKit Control Plane D1 / dashboard / sync jobs

publish

Workers KV runtime snapshots versioned immutable config

Cloudflare Runtime Worker deterministic rule evaluation

Apple Retention Messaging API offer / message response

Experimentation

Experiment without shipping backend code.

Retention behavior can be updated independently from your application backend. Deploy multiple retention flows and test promotional offer strategies, storefront-specific messaging, pricing experiments, cancellation winback flows, and localized retention messages. Roll back instantly if needed.

experiment.yml

rules:
  - name: yearly_winback
    conditions:
      productId:
        in:
          - premium.yearly
    response:
      offer: SAVE50
      title: Stay with Premium

Operational workflow

Replace operational scripts with a deployable workflow.

Inventory sync
Pull apps, subscription groups, products, and promotional offers from App Store Connect.
Validation
Check offer coverage, localization, priorities, fallbacks, and unreachable rules.
Runtime publishing
Compile retention flows into versioned snapshots and distribute them to the runtime.
Simulation and rollback
Test request payloads, inspect selected rules, and roll back published configs.
Logging
Trace runtime decisions, latency, selected offers, and fallback behavior.

Technical details

Designed for developer trust.

Runtime

Cloudflare Workers runtime
Globally distributed endpoints
Immutable runtime snapshots
KV-backed config delivery
Deterministic rule evaluation

Integrations

App Store Connect API
Apple Retention Messaging API
Promotional offers
Subscription groups

Validation

Rule conflict detection
Missing offer detection
Fallback validation
Localization checks

Security

Encrypted App Store Connect keys
Audit logs
Role-based access
Hashed transaction identifiers

Screenshots / UI

Real product captures only.

This build does not render synthetic product screenshots. Add real captures for subscription inventory, retention rule editing, runtime config diffs, request simulation, and runtime request logs when the product UI is ready.

Who this is for

Built for teams operating subscription revenue.

Indie iOS apps

Replace fragile scripts and manual App Store Connect workflows.

Subscription products

Deploy retention experiments safely across multiple SKUs and storefronts.

Growth teams

Test promotional offers and winback strategies without backend deployments.

Agencies

Manage retention operations across multiple apps from a single system.

Pricing

Start with one app. Add operational depth as needed.

Free

1 app
Manual sync
Basic runtime
Community support

Start free

Recommended

Pro

Usage based

Multiple apps
Scheduled sync
Runtime logs
Validation engine
A/B testing
Rollback

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Team

Custom

RBAC
Audit logs
Multiple environments
Priority support

Contact

FAQ

Operational boundaries, plainly stated.

Does RetainKit proxy all retention traffic?

No. You can self-host runtime evaluation or use RetainKit-hosted endpoints.

Does it replace App Store Connect?

No. RetainKit operationalizes retention workflows built on top of App Store Connect APIs.

Can I self-host the runtime?

Yes. Runtime configs can be exported and deployed independently.

Does RetainKit support experimentation?

Yes. Retention flows can be versioned, tested, and rolled back independently.

Is runtime evaluation realtime?

Yes. Runtime configs are distributed globally through Cloudflare Workers and KV.

RetainKit

Operate retention as infrastructure.

RetainKit turns Apple Retention Messaging into a deployable operational system, not a collection of scripts.

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