sciNote doesn't have its own handwriting app, however, you can download Google's Handwriting Input app and use it on your PC or Android tablet.
To download the app, follow this link. After you download the app, open the Results section in sciNote. Let's say you want to take a picture with your tablet and upload it directly into sciNote. This can be easily done. First, click the File button.
Continue with clicking the Browse to add button.
If you have a Samsung tablet, usually, these calls to action appear at the bottom of the screen.
Click on camera icon, take the picture and save it. After that you need to click on the Add file result in order to upload the picture.
Once the picture is uploaded, you can write your notes by hand under the Comments section. Then make a long press on the microphone icon on the keyboard (between Esc and Alt) and choose the Select input method action.
Continue by selecting the Google Handwriting Input.
After that, you can start writing your notes by hand and the words will automatically display in the Comments field.