For indie developers & small studios

Subscription infrastructure without unnecessary complexity.

iOS and Android subscriptions, entitlements, webhooks and revenue analytics in one developer-friendly SDK. Free while you're small. Predictable pricing as you grow. Free migration from your current setup.

$0/month up to $2,500 in monthly tracked revenue · Free migration & setup

Paywall.swift
import Ledgerline

Ledgerline.configure(apiKey: "pk_live_…")

let offering = try await Ledgerline.offering("default")
let result = try await Ledgerline.purchase(offering.annual)

if result.entitlements["pro"].isActive {
  unlockPro()
}
events · live● streaming
INITIAL_PURCHASEpro_annualios
TRIAL_STARTEDpro_monthlyandroid
RENEWALpro_annualios
BILLING_ISSUEpro_monthlyios
CANCELLATIONpro_monthlyandroid

Sample data

Platform

Everything you need to sell subscriptions. Nothing you don't.

The core subscription stack an indie developer or small studio actually uses — without the enterprise extras you pay for and never touch.

/ios

iOS subscriptions

StoreKit purchases, trials, offers and renewals behind one simple API.

/android

Android subscriptions

Google Play Billing handled with the same SDK calls as iOS.

/validation

Transaction validation

Server-side receipt and transaction validation for App Store and Google Play.

/entitlements

Entitlements

One source of truth for who has access to what, across platforms.

/lifecycle

Subscription lifecycle

Trials, renewals, grace periods, billing issues, refunds and cancellations tracked for you.

/webhooks

Webhooks

Real-time events sent to your backend for every subscription change.

/analytics

Revenue analytics

MRR, trials, conversion and churn without building your own pipeline.

/notifications

Notifications

Alerts for billing issues, cancellations and other events you care about.

/apps

Multi-app management

Run every app in your portfolio from one account and one dashboard.

Free migration & setup

Move your existing apps without rebuilding from scratch.

We help you import existing subscribers and map your products and entitlements, so active subscriptions carry over. Migration and setup are free.

migrate from
  • → RevenueCat
  • → Superwall
  • → Adapty
  • → Qonversion
  • → Purchasely
  • → Custom subscription backends
  1. 01 Tell us your current setup and apps.
  2. 02 We map products, entitlements and existing subscribers.
  3. 03 Swap in the SDK and switch over when you're ready.
Migrate my apps free
Pricing

Free while you're small. Predictable pricing as you grow.

Pay nothing until your apps earn $2,500 a month in tracked revenue. Above that, a percentage of tracked revenue — no seat fees or feature gates. The exact percentage will be confirmed for early-access teams.

up to $2,500 monthly tracked revenue
$0/month

Above $2,500, a percentage of tracked revenue. You only pay once your apps are earning.

  • → iOS + Android subscriptions
  • → Entitlements, webhooks & analytics
  • → Multi-app management
  • → Free migration & setup
Start free

Questions

Can I migrate from my current provider?+

Yes, for free. We help migrate from RevenueCat, Superwall, Adapty, Qonversion, Purchasely or a custom backend, importing existing subscribers so active entitlements carry over.

Who is this for?+

Indie developers and small mobile studios who want reliable subscription infrastructure without paying for complexity they don't need.

What counts as tracked revenue?+

Subscription and in-app purchase revenue processed through the SDK across all your apps in a given month.

Which platforms are supported?+

Native iOS and Android first, with cross-platform SDKs on the roadmap. Tell us what you use when requesting access.

Who is behind this?+

Ledgerline is built by Canary Beck Labs, a company that builds and operates its own subscription apps.

Start free or migrate your apps

Tell us about your apps and current subscription setup. We'll help you get started or plan a free migration.