An is an archive analogous to a .exe file on Windows or .apk on Android. It contains the binary code and resources required to run an application on iOS. Because Apple’s ecosystem is "walled," users cannot simply copy an IPA file to their device to install it; they must undergo a process known as sideloading .
If you are determined to get an IPA file onto your iPhone, you must use a process called . This requires a computer (Windows or Mac) and a tool like AltStore , Sideloadly , or Cydia Impactor (now mostly deprecated). messenger lite ipa download