Perttu Lähteenlahti

Author’s posts

• How Rudrank Riyam won Shipaton’s Build in Public Award by sharing every step

  • Company

  Behind the scenes of a Shipaton-winning launch — from prototype to community-powered release.

  

• From first app to WWDC winner: Leandro Tolaini’s Shipaton story

  • Company

  How building his first app led Leandro Tolaini from Shipaton to winning WWDC's Student Challenge

  

• A Beginner’s guide to implementing an ad-free subscription in your Flutter app

  • Engineering

  A step-by-step tutorial to let users pay to remove ads—using AdMob, and RevenueCat

  

• A beginner’s guide to implementing ad-free subscriptions in your React Native app

  • Engineering

  A step-by-step tutorial to let users pay to remove ads—using Expo, AdMob, and RevenueCat

  

• How to build a Blinkist-style paywall using RevenueCat webhooks and Zapier

  • Engineering

  Build a Blinkist-style paywall with RevenueCat and Zapier—no backend required.

  

• How to add subscriptions to a Bolt-generated Expo app

  • Engineering

  Want to add in-app subscriptions to your Bolt app? This guide shows how to build a working paywall UI using prompts only, then integrate RevenueCat to handle real purchases and entitlements on Android using EAS Build.

  

• Build a single Expo app with subscriptions on iOS, Android, and Web using RevenueCat

  • Engineering

  Use one React Native codebase and RevenueCat’s Web Billing SDK to support subscriptions across platforms in 30 mins