In order to collect data for product iteration, you must define your goals, metrics, and sources. Your goals are the outcomes you want to accomplish with your product iteration, such as improving conversions, retention, or revenue. Your metrics are the numerical indicators that track your progress towards your goals, like sign-ups, churn, or sales. Lastly, your sources are the channels and tools that provide you with data, such as surveys, interviews, analytics, or experiments.
To collect data for product iteration, surveys and interviews are qualitative methods that allow you to get feedback and opinions from customers or potential customers. Analytics are quantitative methods that enable you to monitor user behavior and interactions with your product. Experiments are methods that let you test different variations of your product or features and compare their results. Popular tools for collecting data for product iteration include Typeform, SurveyMonkey, Google Forms, Calendly, Zoom, Skype, Google Analytics, Mixpanel, Amplitude, Optimizely, Google Optimize and Firebase.