application marketplace only. Users should … not [download applications] from third-party sources, to minimise the risk of installing a malicious applicatio...

https://www.apple.com/jp/privacy/docs/Building_a_Trusted_Ecosystem_for_Millions_of_Apps.pdf

Sig and TM SWL146-011400 1 APPLE USER GROUPS SIGNATURE and TRADEMARK LICENSE Apple is pleased to offer your user group a limited non transferable license to...

https://www.apple.com/jp/usergroups/registration/pdfs/UserGroupsSTL2003.pdf