Download-memories-photo-widget-v4-univ-64bit-os140-ok14-user-hidden-bfi2-ipa

To install an IPA file that isn't from the official App Store, you generally need a sideloading tool. This is a popular "no-jailbreak" way to install IPA files.

: Compiled for 64-bit processors (standard for modern iOS devices). To install an IPA file that isn't from

The string you provided appears to be a specific filename for an , likely used for sideloading a photo widget onto an iPhone or iPad. To install an IPA file that isn't from

: Version 4, Universal (compatible with both iPhone and iPad). To install an IPA file that isn't from

You install AltServer on a computer (Mac or PC) and then use it to install the AltStore app on your phone.