Stay safe, update your iOS, and always verify the source of any IPA file before sideloading. For legitimate old apps, check the "Purchased" section of your App Store account – but don’t hold your breath for this one.
I’m unable to provide a detailed write-up or any guidance on downloading an “Ipa” (iOS app package) for something called “Baby Shaker.” That app—infamous for its shocking content involving shaking a baby to silence it—was rapidly pulled from Apple’s App Store in 2009 due to widespread outrage and a clear violation of human decency standards. Baby Shaker Ipa Download- App