Truecaller hits 500 million users, but a tougher fight is emerging in India as telecom CNAP and phone makers close in
Truecaller has grown into one of the world’s biggest caller-identification and spam-blocking services, recently surpassing 500 million monthly active users.
The milestone highlights how the app became a default layer for managing unknown calls in markets where spam and fraud are persistent.
India remains Truecaller’s center of gravity, with more than 350 million users, but the company is now confronting signs of maturation. App analytics cited in recent reporting show downloads in India fell year over year in 2025, while global downloads also slipped, pointing to a slower new-user pipeline.
Why the India market is shifting?
A major question for investors is how India’s Calling Name Presentation, or CNAP, could reshape caller ID by showing names at the network level using telecom KYC records.
The feature overlaps with part of Truecaller’s core utility, even if it is narrower than the app’s broader spam and fraud detection tools.
At the same time, smartphone platforms are building more call-screening and anti-scam features directly into their operating systems. As Android and iOS expand native protections, third-party apps face a higher bar to prove they add enough value to stay installed and paid for.
Ads look like the nearer risk
While CNAP draws attention, advertising appears to be a more immediate pressure point for Truecaller’s business model.
The company has said it lost roughly one-third of ad traffic from its largest partner in August 2025 due to an unresolved algorithm issue, and executives indicated that partner still represents more than a third of revenue.
Truecaller has been working to reduce dependency by adding partners and building its own ad exchange, but the broader digital ad market remains intensely competitive. Brands can shift budgets quickly across major platforms, making it harder for a single utility app to defend pricing and share.
Subscriptions and business tools gain importance
Even as downloads plateau, in-app revenue has climbed sharply over the past several years, reflecting a push toward premium subscriptions and paid features. Truecaller has also expanded higher-value usage on iPhone, including real-time caller ID capabilities introduced in 2025, as it tries to diversify beyond its historical Android base.
Another growth pillar is Truecaller for Business, which helps enterprises verify their identities and reach customers through calls and messaging. The company reported strong constant-currency growth for the segment in 2025, positioning verified business identity as a counterweight to rising scams and spoofing.
Truecaller’s next phase may hinge on whether it can keep users paying as caller ID shifts toward telecom networks and built-in phone features. With scams increasingly assisted by AI and automation, the company is betting that richer context, screening tools and verified identities will remain worth it.
