By LLANESCA T. PANTI, GMA News Published May 4, 2021 4:29pm Contact tracing czar Benjamin Magalong and President Rodrigo Duterte's spokesman on Tuesday issued what appeared to be contrasting statements as regards the StaySafe.ph, the contact tracing app developed for the country. While Magalong raised the Department of Healths's supposed misgivings about the application, developed by private firm MultiSys, Secretary Harry Roque said all controversies regarding the online tool had been resolved. "It remains to be seen if this contact tracing app is highly reliable," Magalong said at the Laging Handa briefing when asked if StaySafe.ph was already operational. Magalong said the DOH claimed that the app still required further study.