All NMR vs Binary Fun

App to predict ¹³C and ¹H NMR spectra: draw a structure to see its spectra. The accuracy (Mean Average Error) of the algorithm is about 1.5 ppm for ¹³C and 0.21 ppm for ¹H (RMSE = 2.8 and 0.31 ppm correspondingly). - Instantly re-calculate spectra while changing structure; - Predicted spectra stored in iCloud and synchronised among all iOS devices and Mac version; - Email PDF report; - Zoom in spectrum; - Zoom in structure (important for iPhone users); - Option to display chemical shift values on structure; - Simple clean interface. The prediction algorithm is a combination of neural network and spheric codes based algorithms.

Learn binary through play. Turn 0s and 1s into target decimal values, solve satisfying logic puzzles, and build real intuition for number systems. Binary Fun makes computer-science foundations feel clear and rewarding. Start with friendly 4×4 grids, then grow into bigger boards, daily puzzles, and timed sprints. FEATURES • Convert binary numbers to decimal through play • Solve logic puzzles across multiple grid sizes • Practice number systems at your own pace • Take on a fresh daily challenge • Race the clock in Binary Sprint Whether you are learning to code, studying computer science, or simply love a good brain teaser, Binary Fun gives you a clear, playful way to sharpen your problem-solving skills. Privacy Policy: https://sites.google.com/view/petraapps/privacy-policy Terms of Use: https://sites.google.com/view/petraapps/terms Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/