In iOS 12.4.9 PhonePe is not working

Hey there, sri198.

We understand you're wanting to use a specific app on an iPhone, but receiving this message that appears in the screenshot. From the message, it appears that your iPhone device will need to be running iOS 13.4 or higher. If your device cannot update past iOS 12.4.9, it cannot use this app.

From the following article, iPhone 6s and later devices can get to iOS 13 and later: Apple security updates

Take care!