Every Door is a cross-platform application that allows you to contribute to OpenStreetMap in easy ways. Akin to StreetComplete, but Every Door can be installed for iPhones and iPads, too. We have gotten the permission from the app's original developer, Ilya Zverev, to publish the app for HUAWEI AppGallery. More information can be found on the app's GitHub Issues page: https://github.com/Zverik/every_door/issues/483. Information for Mainland China users. We are unable to request for the app to be available in Mainland China for administration reasons, as HUAWEI requires us to include and upload a Chinese Resident Identity Card (居民身份证) to do so. Additionally, it is also important for Chinese users to consider the current legal state of the OpenStreetMap in China. How to verify that the AppGallery version is safe for use? We use the same APK builds as published from the project's GitHub page to AppGallery, which is possible as the app does not primarily rely on Google Play Services (and thus works on Huawei without the need for VMOS). This strategy is definitely different than the ones for F-Droid version, where apps must be recompiled by the F-Droid’s infrastructure to ensure that no proprietary things should ever, ever be inside the published app. Why is the age rating different than that of Google Play Store? Following the OpenStreetMap’s Terms of Use for minors, OSM expects users to be 13 years (under supervision) or 16 years (unrestricted) or later to use the platform. HUAWEI, however, only offers 12+ and 16+ rating categories. This is to anticipate stricter age rating regulations in some countries.