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Truecaller said it has reached 500 million monthly active users, marking a new growth milestone for the caller ID and spam-blocking app.
The company said India remains its largest market, while usage outside India has climbed past 150 million monthly users.
Truecaller also reported more than 4 million paying subscribers and said it added about 50 million users during 2025.
The update comes as phone fraud and spam calls remain a persistent problem in many countries.

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Truecaller said on March 31 that it has reached 500 million monthly active users worldwide, lifting the Sweden-headquartered caller ID and spam-blocking service to a new scale as phone scams and unwanted calls continue to rise across regions.

## A new user milestone

Truecaller said it surpassed 500 million monthly active users (MAU) on its platform. The company framed the milestone as a sign of growing demand for tools that help people identify unknown callers, block spam, and reduce exposure to scams.

The company said its user base has doubled over the past five years. It also said it added about 50 million users during 2025, continuing a pattern of steady expansion it highlighted in earlier updates.

Truecaller’s product started as caller identification and spam detection, but the company has been broadening its pitch in recent years. It now describes itself as a trust layer for mobile communication, with features aimed at helping users make safer decisions before answering a call or replying to a message.

## India still leads, but growth outside India is central

Truecaller said India remains its biggest market, with more than 350 million monthly users. It also said it has now surpassed 150 million monthly users outside India.

This split matters for the company’s long-term growth strategy. India is a major base for caller ID apps because unsolicited calls and SMS spam are common, and because many people rely on their phone number as a primary digital identity. At the same time, Truecaller has been pushing to grow usage in other markets where scam calls and spoofed numbers have become a mainstream consumer issue.

The company has previously pointed to faster relative growth outside India, including parts of Latin America and several countries in Africa, alongside expanding traction in markets such as the United States.

## Paid subscriptions and business model signals

Truecaller said it has more than 4 million subscribers to its paid plans. Subscription growth is a key business indicator because it reduces reliance on advertising and creates recurring revenue tied to product features.

The company also said it remains relatively lean for its scale, with about 470 employees. It presented this as an operating model that allows it to keep building new features while serving a large user base.

In recent years, Truecaller has added products beyond basic caller ID. These have included tools designed to improve spam filtering, provide more context around calls, and support user controls for screening and handling suspicious communication.

## A market shaped by scams, spam, and new defenses

Truecaller’s user growth comes amid ongoing global concern about phone-based fraud. Scam tactics vary by market, but often include impersonation, pressure tactics, and social engineering that aims to extract money or personal data.

In India, Truecaller has also faced the prospect of stronger competition from telecom-led caller identification efforts that could reduce reliance on third-party caller ID apps. These initiatives are designed to show a caller name based on carrier records, which could change how identification works at the network level.

Truecaller has responded by expanding features and emphasizing protection “before, during, and after” calls and messages. The company has also been experimenting with new approaches to screening calls, including AI-assisted tools.

## What the company says comes next

Truecaller said it is aiming for further expansion beyond the 500 million mark. The company has also pointed to a longer-term ambition of eventually reaching 1 billion users.

For now, the 500 million MAU milestone places Truecaller among a relatively small set of consumer apps that have reached half a billion monthly users, underscoring how caller verification and spam protection have become mainstream needs rather than niche utilities.

AI Perspective

A caller ID app reaching 500 million monthly users highlights how normal it has become to treat unknown calls as a security risk. The next phase will likely be shaped by how well these tools balance accuracy, privacy, and ease of use across different countries. The milestone also signals that trust and identity checks are becoming basic expectations in everyday communication.