Standard iCloud backups often fail to work with sideloaded IPAs. You may need to manually export your chats. The Bottom Line

Since WhatsApp doesn't have a standalone iPad app in the main store, these sites often provide a "web wrapper" that makes WhatsApp Web look like a native app on your home screen.

This is the killer. When you install a sideloaded WhatsApp IPA, . Why? Because push notifications are tied to Apple’s Push Notification service (APNs), which requires a unique App ID registered with Apple. A generic, cracked IPA cannot generate this. You will only receive notifications when you open the app.

Installing an IPA file isn't like double-clicking a file. Apple has three massive barriers: