The App Store version rarely shows 10157 because Apple pre-validates it. Try downloading WhatsApp from the Mac App Store instead of the website. Final Verdict: Which Fix Works Best? After testing on three different Catalina Macs, here is the success rate:
This guide was updated in 2026 to reflect the latest macOS Catalina security behaviors and WhatsApp installer changes. For support, visit the official WhatsApp Help Center or Apple Communities.
👉 https://www.whatsapp.com/download
Yes – use WhatsApp Web or download the older version 2.21.102 (but that lacks features and security patches).