Every iOS app requires a valid provisioning profile and cryptographic signature linked to an approved developer account. Sideloading tools like AltStore, SideStore, or SnailSide strip the original App Store signature and re-sign the binary using your personal Apple ID certificate. Because Facebook Messenger relies on explicit team identifiers for its nested app extensions (like notification services and Apple Watch sync), a simple re-sign breaks the internal dependency chain, causing a crash on launch. Keychain Access Groups
Options to change chat bubble colors, application fonts, and use true OLED dark modes that save battery life on compatible iPhones. facebook messenger ipa patched
While powerful, these modded apps are not without their problems. Every iOS app requires a valid provisioning profile