Truecaller launched Scam Checker on Sunday, a free web and Android tool that lets users paste suspicious phone numbers, links, or messages to check for fraud—no app download or sign-in required.

The service taps Truecaller's community-driven ScamFeed for reports. Full caller details remain gated behind Truecaller's main app.

The move is a transparent response to structural erosion of Truecaller's core business in India, which accounts for roughly 70 percent of its 500 million global users. Indian telecom operators have begun rolling out Calling Name Presentation (CNAP), a network-level caller ID system that displays a caller's government-registered name without a third-party app. Apple and Google are layering native spam detection into iOS and Android respectively.

Truecaller's thesis: capture the moment when a user is *not* in its app. The company estimates 14 million monthly web searches happen for link and phone verification. Scam Checker launches in India and will expand to Latin America, the Middle East, Africa, and Southeast Asia.

CEO Rishit Jhunjhunwala framed the product around user behavior: "When you need it, you're usually somewhere else. The link shows up on WhatsApp. Your mum gets a message about a traffic fine. A friend forwards you a screenshot and asks, Is this real? What people do in that moment is search."

Scam Checker analyzes submitted links by expanding shortened URLs and following redirects to their final destination, then cross-references against Truecaller's proprietary risk database. For messages, it extracts embedded phone numbers and links and surfaces relevant community reports.

Scam vectors have fragmented. A 2025 GSMA survey found 46 percent of Indian scam victims were approached via messaging apps, 37 percent through SMS, and 32 percent through voice calls.

Truecaller's community data scales: approximately 20,000 live scam reports flow through ScamFeed in India, with roughly 1,300 new reports added weekly. Between Sept. 14 and 20, the company evaluated 12.9 billion messages globally and flagged 20.3 million as fraudulent.