NEW Our Rails 8.1 API backend is now open source

The fastest way to build a Rails-backed native iOS/Android SaaS app.

Authentication, multitenancy, roles, and CRUD — all wired up.
iOS 26 · Liquid Glass · Jetpack Compose · Rails 8.1 · Claude Code-ready.

Get started See features

Open-source AI agent

Or generate a customized version with one sentence.

nativeapptemplate-agent — a Claude Code agent that turns a one-sentence spec (e.g. “a walk-in queue for a barbershop”) into a renamed, validated three-platform implementation: a Rails 8.1 API, a SwiftUI iOS app, and a Jetpack Compose Android app. Free / MIT.

View on GitHub npm

"The only boilerplate that pairs true native Swift iOS and Kotlin Android apps with a Ruby on Rails API backend."

Extracted from a production app on both app stores

MyTurnTag Creator

NFC-powered waitlist management app

App Store | Google Play
Swift / SwiftUI Kotlin / Jetpack Compose Ruby on Rails

What do you need?

Pick the stack that fits your project

Each app template includes full source code. Pick the platform that matches your project.

The Rails API backend is free and open source. Paid products cover the native iOS and Android clients.

Want to inspect the code first?

Browse the free, open-source starter clients on GitHub before you buy.

Free iOS client Free Android client

Why buy instead of build?

Ship today, not next month

Even with AI coding tools, recreating multitenancy, roles, and auth across iOS + Android + Rails takes weeks. Get production-proven code instantly.

Production-proven

Extracted from MyTurnTag Creator, a live app on the App Store and Google Play.

Lifetime updates

Swift, Kotlin, and Rails evolve every year. Pay once, get updates forever — no subscription.

Battle-tested

Unit tests, integration tests, and real-world edge cases already handled. Not placeholder code.

Instant access

Get full source code access within minutes of purchase. Start building your app today.

Everything you need

Production-ready features out of the box

Every template includes the core features that Rails + mobile developers actually need. No placeholder code — real, working functionality.

User authentication.
Sign up, sign in, email confirmation, and forgot password — fully integrated across iOS, Android, and the API.
URL path-based multitenancy.
Built-in organization switching with /:account_id/ URL structure. Each user can belong to multiple organizations.
Invite users to organization.
Team members can be invited to join an organization, with role-based access from day one.
Roles and permissions.
Admin, member, and custom roles baked into the API and enforced across the native apps.
Full CRUD example.
A complete create/read/update/delete flow wired end-to-end from the native UI to the Rails API, ready to clone for your own models.
Native iOS (Swift/SwiftUI).
A true native iOS app built with Swift and SwiftUI — not a WebView wrapper. Modern and fast.
Native Android (Kotlin/Jetpack Compose).
Built with Kotlin and Jetpack Compose. Material Design and modern architecture.
Rails API backend.
Full source code for the Ruby on Rails API. Token-based auth, JSON serialization, and ready for deployment.