If WhatsApp does not appear in your JioStore, it usually means your device region or system time is incorrect, or your KaiOS version is unsupported.
This is a third-party tool used to install app packages on KaiOS. The Sideloading Process If WhatsApp does not appear in your JioStore,
Ensure you have at least 100MB of free space on your internal storage. If WhatsApp does not appear in your JioStore,