India’s CNAP (Calling Name Presentation) uses operator-verified SIM records to display caller names at the network level, while Truecaller runs as an app using community data for caller ID, spam detection and insights. CNAP works without Internet, and a broader rollout is expected by early 2026.India’s CNAP (Calling Name Presentation) uses operator-verified SIM records to display caller names at the network level, while Truecaller runs as an app using community data for caller ID, spam detection and insights. CNAP works without Internet, and a broader rollout is expected by early 2026.