Spotify said in 2023 that its production iOS application built completely with Bazel for more than 200 engineers.
Spotify described completing its iOS migration to Bazel without interrupting its weekly release cadence.
Spotify EngineeringScope: Production iOS application and release pipelineOpen source ↗
Conference talkVery high confidence
Historical evidence 2025-11-10
CMake To Bazel, Migrating Spotify's Desktop Apps
A Spotify engineer described completing the migration of 1.1 million lines of shared client C++ from CMake to Bazel at BazelCon 2025.
The official abstract says Spotify completed a CMake-to-Bazel migration covering 1.1 million lines of shared client C++ across more than five platforms.
Driving Architectural Improvements with Dependency Metrics
Spotify engineers described moving client codebases into a Bazel-powered monorepo at BazelCon 2022.
The official session says Spotify was moving client codebases into a monorepo powered by Bazel and using Bazel-derived dependency metrics to guide the migration.