: Official versions receive parity updates with PC, including massive content updates like "Labor of Love" and upcoming 1.4.5 features. 4.5 or how to transfer a save file to an official copy? Mobile version history - Official Terraria Wiki
: Indicates the file is compiled for 64-bit ARM architecture (standard for modern iPhones and iPads). os100 : Likely refers to a minimum requirement of iOS 10.0 . : Official versions receive parity updates with PC,
These complex filenames are typical of third-party "cracked" app stores or file-sharing sites that include metadata about the device compatibility and versioning in the title. os100 : Likely refers to a minimum requirement of iOS 10
The specific string "download-terraria-v4-v100876-unk-64bit-os100-ok14-user-hidden-bfi-ipa" refers to a pirate or non-official iOS application package (IPA) for . : Often used in file naming conventions to
: Often used in file naming conventions to denote compatibility with specific iOS versions (possibly iOS 14).