Nähtagebuch KeeSim is a free iPhone app developed by Jens Weinrich for passionate sewers who want to keep track of their projects and ideas in a digital sewing diary. With this app, users can easily document their small and big creations, share them with friends, and quickly check how much fabric they need while shopping. It also allows users to keep track of any modifications made to patterns, as well as record details such as when and for whom they sewed.

The app features a clean and intuitive interface, making it easy to navigate and find specific projects, gifted items, and collected ideas using the search function. Nähtagebuch KeeSim is designed to help sewers stay organized and create a reference book filled with beautiful memories and important information. Whether you're a beginner or an experienced sewer, this app is a valuable tool for documenting your sewing journey.