GB WhatsApp is an unofficial modded (modified) version of WhatsApp developed by third-party developers, not by Meta (Facebook). Version 18.70 is a specific build that claims to include the latest security patches, bug fixes, and feature enhancements as of its release date. This version is designed to mimic the core functionality of official WhatsApp while adding extensive customization and privacy features that the original app lacks.
Because it is not available on the Google Play Store or Apple App Store, users must sideload the app using an APK (Android Package Kit) file. specifically refers to a build released by popular modders that was based on a stable iteration of the official WhatsApp base, ensuring that bugs were minimal while feature sets were maximized.
As of May 2026, version 18.70 is recognized as a stable release that balances new features with anti-ban improvements.