Need to write a small Sound Editor iOS/Android

Need to write a small Sound Editor for iPhone and Android.(see attached file) Common functions: 1. Cut/Copy/Paste Cut/Copy - for selected place of the chosen track. Paste - for any selected place of any track. 2. Undo/Redo for all actions with tracks, which have been done. 3. Zoom in/out 4. Mix and render Mix all tracks and make one. Sound effects: 1. Amplify 2. Normalize 3. Fade In 4. Fade out 5. Trim 6. Echo 7. Silence 8. Speed change 9. Resampling 10. Noise removal 11. Reverse