He checked in on his Tinder profile on Monday morning, the Gold Coast Bulletin reported.
Police have taken copies of Mr Tostee's online posts, including boasts on a bodybuilding forum about 150 sexual encounters and balcony sex.
He also posted that he was "devastated" by Ms Wright's death and denied he had caused it.
Gold Coast Detective Superintendent David Hutchinson said that police were aware of the online posts, but were not making any comment on their content.
"Obviously we will look at whatever is presented, but whether it forms a part of any investigation down the track is debatable. But certainly for intelligence and information purposes, we're looking at them."
A forensic examination of the apartment was completed yesterday. Mr Hutchinson said police had seized some items during the search, but he would not go into details.
A post-mortem examination of Ms Wright's body was also completed yesterday. It would be some time before toxicology results were available. Arrangements to return Ms Wright's body to her family were continuing.
Ms Wright's parents and sister travelled to Australia on Monday.
Maria Smart of the Mabuhay Association, a Wellington Filipino society, said she had spoken to Ms Wright's aunt, who along with Ms Wright's mother Beth Tagpuno, is Filipina.
Australia's Nine News reported Mr Tostee was charged with public nuisance offences and assaulting police after a January 27 incident.