Notability
Beautiful inking. Good handwriting recognition. Powerful audio recording features. Clean structuring of loose notes and PDFs.
Few customization options.
Reviewed: Mac iPhone iPad
Reviews: Handwriting
GoodNotes 4
Handwritten detection in many languages which is even exportable. Smooth inking engine with many features.
No audio recording features. Slow development and questionable quality assurance.
Reviewed: Mac iPhone iPad
Flexcil
Providing a novel approach to work on multiple documents at once.
Lack in core functionality and customization. The overlay does not go as far as it could.
Reviewed: iPad
Noteshelf
Great Ink Engine with many different brush types. Auto-publishing to Evernote.
No OCR for handwritten text. Few customizability in options.
Reviewed: iPhone iPad Apple Watch