iOS subscription management SDKs in 2026: RevenueCat, Adapty, and Purchasely compared

Choosing between RevenueCat, Adapty, and Purchasely for your iOS subscription app depends on your team size, paywall ambitions, and analytics needs. This comparison breaks down which SDK fits which scenario.

Managing iOS subscriptions through StoreKit alone is workable for a small app with one or two products. But as your catalogue grows—multiple plans, introductory offers, promotional offers, family sharing, offer codes, and cross-platform products—the bookkeeping quickly overwhelms your server team. That is why a category of subscription management SDKs emerged: they wrap StoreKit, validate receipts or JWS transactions, manage entitlements, and expose a consolidated analytics view.

Three tools dominate the iOS conversation in 2026: RevenueCat, Adapty, and Purchasely. Each has a distinct philosophy and price point. This post breaks down the differences so you can make a reasoned call before committing to an integration.

Why you might want an SDK at all

StoreKit 2, introduced in iOS 15 and meaningfully matured since, handles on-device transaction verification and exposes signed JWS payloads. The raw cryptographic work is covered. What StoreKit 2 does not provide:

• A server-side entitlement store. You still need infrastructure that maps Apple transaction IDs to user accounts, checks subscription status in real time, and handles renewals without polling the device.
• Cross-platform state. If your app runs on iOS and Android—or even iOS and a web subscription—StoreKit knows nothing about the other side.
• Analytics dashboards. MRR, churn rate, LTV by cohort, and trial-conversion rate are not in App Store Connect at the granularity most subscription teams need.
• No-code paywall iteration. Changing paywall copy or layout without an App Store release requires either your own remote-config system or a tool that ships one.

The SDKs below address all four. The question is which trade-offs suit your team.

The three main contenders

RevenueCat

RevenueCat is the default choice for most indie developers and small teams. It launched in 2018 and has the largest developer community of the three, which means better third-party tutorials, integration examples, and community answers. Its core offering is a client SDK (iOS, Android, Flutter, React Native, and several others) that wraps StoreKit and Play Billing and routes receipt data to RevenueCat's servers for validation and lifecycle tracking.

Entitlement management is the headline feature: you define entitlements (for example, pro_access) in the RevenueCat dashboard, and the SDK returns a simple boolean, letting you decouple your feature gates from Apple product IDs. When a user upgrades from monthly to annual, or their renewal fails and enters billing retry, the entitlement state updates without you writing any logic on the client side.

RevenueCat's analytics surface MRR, active subscribers, churn, trial conversion, and a cohort retention view. The data is generally available within a few hours and is more actionable than App Store Connect's Subscription Reports for most teams. RevenueCat also ships Paywalls—a no-code paywall builder—and Experiments, an A/B testing layer that lets you test different paywall configurations against each other without a new app release.

Pricing follows a usage-based model: free up to $2,500 MTR (monthly tracked revenue), then approximately 1% of MTR above that threshold, capped via negotiated rates for high-volume customers. For most indie apps, the free tier covers the first several months of growth entirely.

Adapty

Adapty occupies a similar position to RevenueCat but with a heavier emphasis on paywall templating and A/B testing as first-class features. Where RevenueCat's Paywalls feel like a useful addition layered onto an entitlement core, Adapty was designed from early on around the assumption that teams will run paywall experiments continuously. Its visual paywall builder offers more templates and richer customisation options, and its targeting rules for showing paywalls to specific user segments—by country, install source, or prior purchase history—are more granular out of the box.

Adapty's analytics layer is comparable to RevenueCat's in breadth. Where it edges ahead is in funnel analysis: it tracks events from the moment a paywall is displayed through to conversion or abandonment, which gives a more complete picture of paywall performance than conversion rate alone. RevenueCat has added similar capabilities over time, but Adapty's funnel view has been a core part of the product for longer.

The SDK supports iOS, Android, Flutter, React Native, and Unity. Server-side receipt validation and App Store Server Notifications are handled analogously to RevenueCat. Pricing follows a similar model, with a free tier for low-MTR apps and percentage-of-revenue pricing at scale. The trade-off for Adapty's richer paywall tooling is a steeper dashboard learning curve; teams that do not plan to iterate on paywalls frequently may find RevenueCat's simpler UI more productive day-to-day.

Purchasely

Purchasely is the enterprise-oriented option. Its pitch is a fully managed paywall and subscription lifecycle layer that requires minimal client-side code and is designed to be operated by non-technical teams: product managers and growth managers can create, publish, and A/B test paywalls without developer involvement after the initial SDK integration.

The SDK integration is deliberately thin—you install the framework, pass your user ID, and Purchasely handles what to display and when. Paywalls, pricing plans, and promotional rules are all configured in the Purchasely console. This architecture makes Purchasely attractive to larger teams where product and engineering functions are separate, and where a developer-gated release cycle for paywall changes is a meaningful bottleneck on growth experiments.

Purchasely's analytics are solid but less self-serve than RevenueCat's or Adapty's—some reporting requires working with their customer success team, which is appropriate for an enterprise relationship. Pricing is not publicly listed and is quote-based, typically involving a minimum monthly fee that makes it impractical for apps below roughly $5,000–$10,000 MTR.

Feature comparison

All three tools support App Store Server Notifications v2, which means subscription lifecycle events—renewals, billing failures, cancellations, refunds—are ingested server-side and reflected in entitlement state without client polling. This is the single most important reason to use any of these tools: reliable entitlement state across network-unreachable devices is genuinely hard to build correctly from scratch.

Pricing impact and when to build your own

The 1%-of-MTR model appears modest at small scale but compounds as your app grows. At $50,000 MTR, RevenueCat's fee is approximately $475 per month (1% of the amount above $2,500). At $200,000 MTR, the fee approaches $1,975 per month. For many teams this remains well below the engineering cost of building and maintaining equivalent infrastructure—a backend engineer's time is rarely cheaper than $2,000 per month when opportunity cost is factored in.

The case for building a custom subscription backend is strongest when:

• Your data residency requirements—GDPR, sector-specific regulation, or enterprise customer contracts—prohibit routing transaction data through a US-based SaaS vendor's infrastructure.
• Your team already operates subscription infrastructure for another platform and the marginal cost of extending it is genuinely low.
• Your product catalogue is unusual enough—consumable and subscription bundles, B2B seat licensing mixed with consumer plans, complex proration rules—that the SDK's data model requires significant workarounds.

For the vast majority of iOS subscription apps, the engineering cost of a custom backend exceeds the SDK fee well past the point where RevenueCat's negotiated enterprise pricing becomes available. The more productive question is which SDK to choose, not whether to use one.

Making the call

A practical decision framework based on team profile:

• Solo or two-person team, iOS-only, one or two subscription products: Start with RevenueCat on the free tier. Integrate in a day, learn the dashboard, and reassess when you approach $2,500 MTR.
• iOS and Android, or cross-platform framework: Both RevenueCat and Adapty handle this well. RevenueCat has broader community documentation; Adapty has a richer paywall editor if you intend to run experiments from early on.
• Product team wants to own paywall iteration without engineering tickets: Adapty or Purchasely. Adapty if you are below enterprise scale; Purchasely if you have a dedicated growth function and budget for a managed vendor relationship.
• Enterprise with data residency or compliance requirements: Purchasely's on-premise deployment option addresses requirements that RevenueCat and Adapty currently do not. Evaluate this requirement before committing to a cloud-only tool.

Whichever SDK you choose, the integration pattern is consistent: install the client SDK, configure products and entitlements in the dashboard, point Apple's App Store Server Notification URL at the vendor's endpoint, and replace your StoreKit completion logic with a single entitlement check. Most teams report a one-to-three-day integration for a straightforward subscription product.

One migration consideration: entitlement definitions you create in the SDK dashboard are separate from App Store Connect product IDs. If you later move from one SDK to another, you will need to remap those entitlements and replay historical transaction data—plan for that migration cost if you are choosing a tool at low scale with the intention of revisiting later.

For teams still deciding whether a third-party SDK is necessary, the subscription group architecture post covers how StoreKit's native constructs map to a product catalogue—a useful foundation before adding a managed layer on top.

Sources and further reading

• RevenueCat developer documentation
• Adapty developer documentation
• Purchasely developer documentation
• Apple StoreKit In-App Purchase documentation
• RevenueCat blog — subscription analytics and growth
• Apple App Store Server Notifications documentation