Won Pinoy Big Brother Teen Edition.

Chiu has been in a relationships with actor and singer Xian Lim, after months of courtship. The couple confirmed they were together in 2013 but it has been speculated they've been together since 2011.

By 2013, it was also revealed that the actress was involved with regularly funding Isla Pulo, an impoverished community of 1,000 inhabitants in Manila Bay, Philippines.

Is a chinese-Filipino descent.

In August 2012, she and her co- star Xian Lim spearheaded a relief operation in Marikina. Chiu was heavily involved with relief efforts for Typhoon Yolanda via Red Cross, which had affected parts of her hometown. Aside from giving food and water, she also held week-long clothes auctions to raise money for Typhoon victims.

She and her siblings were raised by their paternal grandmother and frequently moved residencies in the Philippine.

Chiu uses her media influence to promote various causes. She began partnership with GSK for yearly asthma awareness campaigns, Win Against Asthma, after battling asthma as a child. Chiu has since participated in disaster relief organizations such as Philippine National Red Cross and Sagip Kapamilya.

She joined the PETA campaign Free Mali along with Xian Lim. Chiu made a video plea for Mali, asking that she be moved to a sanctuary for the sake of her well being. I.

Chiu dated co-star Gerald Anderson from 2006 to 2010.

As one of the country's highest paid endorsers,a 2013 report released by the Bureau of Internal Revenue in April confirmed Chiu as 131st top taxpayer in the Philippines with P9.3M In late 2013, Chiu addressed the ongoing Pork Barrel tax scandal and lamented the alleged misuse of the Priority Development Assistance Fund (PDAF), noting the amount of tax celebrities like herself pay to the government.

In 2015, Chiu passed the UPCAT and enrolled in University of the Philippines's UPOU program for business courses.