Yes, but PhonePe adapted to UPI first or was started as an UPI app only, while PayTM was stuck with it's wallet and didn't started offering UPI untill it was too late
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Walmart owned UPI payment giant PhonePe to enter Indian share market soon! Currently very basic proccess of IPO (Initial public offering) works are going on from PhonePe side.
When PhonePe gets complete approval from SEBI, They share their complete
Phonepe was acquired by Flipkart in 2016.
Later
In Dec 2022, PhonePe separated from Flipkart, but both companies are still owned by Walmart.
So, why need another UPI app?