PhatWare Releases Vastly Improved WritePad Handwriting Recognition SDK Posted 6/11/2014 at 0:15 UTC in iPad by gnye@amdesign.net | Permalink | Tweet Washington based PhatWare Corporation today announces WritePad SDK 4.2, an update to their incredibly popular handwriting recognition Software Development Kit for iOS 7.0. WritePad SDK enables third-party app developers and OEMs to leverage state-of-the-art handwriting recognition software for iOS 7. The new version of the SDK features improved handwriting recognition engine, updated APIs supporting UNICODE (UTF-16) text encoding for better compatibility, enhanced documentation and sample code.