Data researchers - form entry application

Around 5-7 years ago, I stumbled upon an iOS app that enabled users to create their own customizable forms for various purposes. Additionally, the app offered a database of pre-existing forms that others had already completed. Users could search for forms related to specific topics such as electrical service or refrigeration start-up. The app had both a free and a paid version. To design a form, users had to use a computer and then upload it to the iOS app. The most significant feature of this app, which I am currently searching for, is its ability to allow users to access and view other people's forms, which is essential