: If YouTube isn't in your history, sign into your Apple ID on a newer device (iOS 14+) and download the app there. Once linked to your account, return to your iOS 12.5.7 device and use the section method described above. Web Browser Alternative
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I understand you're looking for information about installing YouTube on an iPhone running iOS 12.5.7. Here’s the helpful, factual breakdown.
May 2026 Target Device: iPhone 5, iPhone 5c, iPhone 5s, iPhone 6, iPhone 6 Plus, iPad 4th Gen, iPad Mini 1st Gen, iPad Air 1st Gen System Version: Apple iOS 12.5.7 (Final Update for Legacy Devices)