Building an app like a meme soundboard involves creating a user-friendly interface where users can browse, search, and play a collection of popular meme sounds and phrases. Start by curating a library of copyright-compliant audio clips categorized by themes or memes. Implement features like favorite lists, sharing options, and a search function for easy navigation. Ensure smooth playback and compatibility across devices. Incorporate customization options for users to create their own soundboards or mix different sounds. Monetization can include in-app purchases for premium sounds or ad revenue. Regular updates with new memes keep the app engaging and relevant to users.