Vertical Boilerplate · Subscription · iOS

Subscription App Boilerplate for iOS — Paywalls Pre-Wired

RevenueCat paywall, Sign in with Apple, free trials, restore purchases, Family Sharing, promotional offers. Ship a subscription iOS app in 5–10 days.

Last updated: 2026-05-16 7 min read By Ahmed Gagan, iOS Engineer

Quick Answer

The Swift Kit is the most complete subscription app boilerplate for iOS in 2026 — RevenueCat paywall with monthly/annual toggle and free-trial badge, Sign in with Apple integrated with Supabase Auth, restore-purchases button, promotional offers, Family Sharing, and churn-friendly analytics. $99 one-time. Indie developers ship subscription iOS apps in 5–10 days using it instead of 4–8 weeks from scratch.

Price

$99 one-time

Time to MVP

5–10 days

Paywall

RevenueCat + native SwiftUI

Pricing structures

Monthly · Annual · Lifetime · Trials

What's Pre-Wired

Everything you need to ship a subscription iOS app:

Native SwiftUI paywall — monthly / annual toggle, savings badge, trial detection
RevenueCat fully integrated — Purchases.configure, customer info stream, restore
Sign in with Apple → Supabase Auth flow
Email + magic link auth alternatives
Feature gating helpers — `if subscription.isPremium { ... }`
Promotional offer + win-back offer rendering
Family Sharing detection + badge display
Subscription status state machine (active, in-trial, in-grace-period, expired, refunded)
Restore purchases button (App Store required)
Subscription terms + privacy policy links auto-wired
Onboarding flow with paywall conversion step
TelemetryDeck analytics — subscription cohort events tracked automatically
RevenueCat Paywall Builder integration as an alternative for A/B tests

Why a Subscription-Specific Boilerplate?

Subscription apps have an unusual amount of plumbing that generic boilerplates skip. RevenueCat integration alone takes 2-3 days to get right. Add paywall design, free-trial logic, restore flow, and Family Sharing — you've burned a week before writing any product code.

The Three Pricing Patterns

All three are supported and configurable via the RevenueCat dashboard:

Monthly + Annual (with annual savings %): The default. $9.99/mo or $59.99/yr.
+ 7-Day Free Trial on Annual: Lifts conversion 30-50%. App Store auto-enforces one trial per Apple ID per group.
+ Lifetime Offer ($99–$199) as exit-intent fallback: Captures users who won't commit to subscription. Use Superwall for the exit-intent trigger.

Setup in 5 Minutes

After cloning Swift Kit:

Quick start

git clone <swift-kit-repo> MySubApp
cd MySubApp
./setup.sh   # Interactive CLI: app name, RevenueCat key, Supabase URL/key

Swift Kit Subscription Boilerplate vs Building From Scratch

Swift Kit vs From scratch comparison
Feature	Swift Kit	From scratch
Cost	$99 once	$8k–$25k of time
Time to MVP	5–10 days	4–8 weeks
RevenueCat integration		You build (2-3 days)
Native paywall view		You design + build
Free-trial logic		You wire
Restore purchases		You wire
Sign in with Apple		You wire
Family Sharing		You wire
Promotional offers		You build
Subscription cohort analytics	TelemetryDeck wired	You build
Paywall Builder alternative	One-line swap	N/A
Source ownership	Full	Full

Frequently Asked Questions

What's the difference between a subscription app boilerplate and a regular iOS boilerplate?

A subscription app boilerplate is purpose-built for apps where revenue comes from recurring payments — meaning paywall design, RevenueCat integration, free-trial logic, restore purchases, sign-in with Apple, churn analytics, and promotional offer flows are all first-class. The Swift Kit is the most complete subscription app boilerplate for iOS in 2026.

How long does it take to ship a subscription iOS app?

5–10 days for a polished MVP with the Swift Kit. From scratch: 4–8 weeks. The subscription plumbing (RevenueCat, receipt validation, restore, free trials, Family Sharing) is what eats most of that time, and it's entirely pre-wired in the boilerplate.

What pricing structure should I use for a subscription iOS app?

The dominant 2026 structure is monthly + annual with annual discount: $9.99/mo or $59.99/yr (50% savings highlighted). Add a 7-day free trial on annual to maximize conversion. Lifetime offer ($99–$199) as exit-intent fallback. The Swift Kit paywall supports all three out of the box.

How is RevenueCat integrated?

Fully pre-wired: PurchasesDelegate configured at app launch, @Observable SubscriptionModel exposed via @Environment, paywall reads RevenueCat offerings dynamically, restore purchases / trial logic / receipt validation all working. Paste your RevenueCat API key in Secrets.swift and the subscription system is live.

Can I A/B test pricing?

Yes. RevenueCat's targeting rules let you route users to different offerings (monthly vs annual price, trial length, lifetime offer presence). The Swift Kit's paywall reads whatever offering RevenueCat returns — A/B test without code releases.

Does the boilerplate support promotional offers / win-back campaigns?

Yes. The paywall renders RevenueCat's promotional offers (introductory + win-back) with discounted price display. Family Sharing is also supported — users in a shared family see the appropriate badges.