K-Spapp is a free mobile application available on Android that aims to educate users on MRI K-space. It helps users understand how K-space works in MRI by allowing them to manipulate the K-space of an MRI image in real-time. With K-Spapp, users can modify parameters such as scan percentage, partial Fourier, K-space shutters, artificial noise, and more. Users can also view the reconstructed image change in real-time.

The app has several features, including the ability to change window width and level, apply scan percentage, apply partial Fourier (half scan) factor, apply K-space shutter, apply central K-space shutter, apply ringing filter, add noise, add spikes, add motion, and skip lines. K-Spapp is under active development by volunteers and does not collect any personal information or display any ads.

Overall, K-Spapp is a simple and effective tutorial app for understanding MRI K-space. Its user-friendly interface and real-time image manipulation make it a great tool for anyone interested in learning more about MRI K-space.