Version 5 introduces handwriting recognition for iPad, and especially the iPad Pro.
As the only paid feature in Symphony Pro, the upgrade is a one-time purchase that comes with a permanent license, and free updates in the future.
Handwriting is designed to work well when writing with your finger or third-party stylus, and differences in your experience will be few compared with the full gamut of capabilities offered for Apple Pencil. However, please keep these limitations in mind: