How Shazam went from a 4-digit Phone Number to $400m with Chris Barton, Founder - Modern CTO Recap

Podcast: Modern CTO

Published: 2025-12-29

Duration: 41 minutes

Guests: Chris Barton

Summary

Chris Barton, the founder of Shazam, discusses the journey of creating a music recognition app before the era of smartphones, the financial struggles they faced, and how the launch of the App Store transformed their business model, leading to their eventual $400 million acquisition by Apple.

What Happened

Shazam was born out of an ambitious idea in the year 2000, aiming to create a mobile-specific application for music recognition, long before the concept of smartphone apps existed. The initial service launched in 2002 in the UK, where users could dial a short code, hold their phone to the music, and receive a text with the song name. Despite this innovative approach, the business struggled financially for six years, as the model of charging 50 cents per use was not sustainable.

The turning point for Shazam came in 2008 with the launch of the App Store, which significantly boosted user adoption due to the newfound ease of accessing apps directly on smartphones. Shazam's international expansion was facilitated by partnering with local mobile operators and using a white-label approach to brand the service under local names. The company's pioneering use of APIs for music recognition as early as 2003-2004 and the creation of an algorithm to identify music from ambient sound marked significant technological advancements.

Chris Barton was inspired to start Shazam during his MBA at Berkeley after meeting an entrepreneur. The initial idea involved monitoring radio stations to identify songs, but the breakthrough came with developing an algorithm that could recognize music from ambient noise, a feat that required significant technical expertise. Avery Wang, a PhD in audio signal processing with four degrees from Stanford, was instrumental in developing this groundbreaking algorithm.

To support the algorithm's development, Shazam built a music database from scratch and created a Beowulf Cluster for processing. They initially raised $7.5 million to fund their phone number service using short codes. Despite launching in 2002, financial sustainability remained elusive until the App Store's introduction, which finally brought hope.

During the challenging pre-App Store years, Shazam explored various revenue streams, including a B2B business monitoring radio stations, which was eventually sold to BMI. The original concept for Shazam was to create a radio recognition service, akin to existing businesses like Broadcast Data Systems.

Chris Barton emphasizes the importance of eliminating friction in products to unlock new user bases and engagement, drawing parallels with Dropbox's success in file synchronization. After his tenure as CEO of Shazam, Barton joined Dropbox in 2011. Shazam's journey culminated in its sale to Apple for $400 million in 2018.

Key Insights

• Shazam initially launched in 2002 as a phone service in the UK, where users dialed a short code to identify songs, but struggled financially due to an unsustainable pay-per-use model.
• The introduction of the App Store in 2008 was pivotal for Shazam, allowing for easier app distribution and significantly boosting user adoption.
• Shazam developed a unique algorithm capable of recognizing music from ambient noise, with Avery Wang, a PhD in audio signal processing, playing a key role in its creation.
• Shazam was sold to Apple for $400 million in 2018, marking the culmination of its journey from a phone-based service to a widely used app.