Mockaroo - A realistic data generator to test your app

Customer.io - We make it easy to send emails triggered by user behavior. Build, measure and improve your emails to activate and retain users

DUMMY DATABASE - Generate and manage synthetic datasets easily with DUMMY DATABASE

RevenueCat - In-app subscriptions made easy

Random Data Monster - Random Data Monster is a comprehensive suite of advanced random data generation that features generating secure passwords, names, numbers and more than 30+ Google Sheets custom functions to generate random data.

Storyly - Bring superb stories to your app