WhatsApp no longer officially supports iOS 9.3.5, and you cannot download a working version from the Apple App Store. As of May 2025, WhatsApp requires iOS 15.1 or newer to function. Even if you find an old .ipa file, the app will likely fail to connect to WhatsApp's servers because the version is obsolete.
For those without the purchase history, the internet is rife with sites offering "WhatsApp IPA for iOS 9.3.5 free download." These repositories archive older versions of apps. whatsapp ipa for ios 9.3.5 download
An .IPA file (iOS App Store Package) is essentially the executable software file for an iOS app, similar to an .exe file on Windows. When you download an app from the App Store, your phone downloads one of these files in the background. WhatsApp no longer officially supports iOS 9
Upgrade your device – If possible, update to iOS 10 or higher, or use a newer phone. The Third-Party IPA Market For those without the
Search for "WhatsApp 2.21.50.ipa" or "WhatsApp iOS 9.3.5 ipa." Some users have uploaded old encrypted backups.