on your iOS 9 device. Tap the cloud icon next to WhatsApp; it may offer to download the "last compatible version" for your device.
WhatsApp has officially ceased support for any iPhone running an operating system older than (and some reports indicate requirements shifting toward iOS 15.1 in 2025). Devices stuck on iOS 9.3.6, such as the iPhone 4s , iPad 2 , and iPad Mini 1 , cannot run the app because WhatsApp's servers now block these older versions from connecting. 🚫 Why It Won't Work whatsapp old version for ios 9.3.6 download
Do not download "IPA files" from random websites. Those are often malware. Use Apple’s official legacy download system. on your iOS 9 device
WhatsApp often refuses to send SMS verification codes to versions that are "End of Life." Server Connection: Devices stuck on iOS 9