Open-source acknowledgements

The Line includes third-party open-source software managed via the Swift Package Manager. We are grateful to the authors and maintainers of these projects.

The exact dependency graph can change between app releases. This page summarizes the primary packages shipped with the current production build; transitive libraries (also subject to their own licenses) are included as part of those distributions.

Primary packages

Library Version Source
Firebase iOS SDK (Auth, Firestore, Analytics, Crashlytics, Remote Config, App Check, …) 12.12.1 github.com/firebase/firebase-ios-sdk
RevenueCat (Purchases, RevenueCat UI) 5.70.0 github.com/RevenueCat/purchases-ios-spm
Google App Measurement 12.12.1 github.com/google/GoogleAppMeasurement
Google Data Transport 10.1.0 github.com/google/GoogleDataTransport
Google Utilities 8.1.0 github.com/google/GoogleUtilities
GTMSessionFetcher 5.2.0 github.com/google/gtm-session-fetcher
gRPC Binary 1.69.1 github.com/google/grpc-binary
Interop for Google SDKs 101.0.0 github.com/google/interop-ios-for-google-sdks
leveldb 1.22.5 github.com/firebase/leveldb
nanopb 2.30910.0 github.com/firebase/nanopb
Promises 2.4.0 github.com/google/promises
App Check 11.2.0 github.com/google/app-check
abseil-cpp-binary 1.2024072200.0 github.com/google/abseil-cpp-binary
Google Ads on-device conversion 3.5.0 github.com/googleads/google-ads-on-device-conversion-ios-sdk

License texts

Each project ships its own LICENSE or COPYING file in its repository. Common licenses in this stack include Apache License 2.0 (many Google/Firebase components) and MIT (RevenueCat SDK — verify in-repo). For authoritative terms, open the repository’s license file for the version you are auditing.