Apple Pay continues to grow as support at retailers and inside applications expands. A new research note from Bernstein this week highlights that growth, and notes that Apple Pay is one of the biggest long-term competitive threats to PayPal.

As detailed by Quartz, Bernstein researchers estimate that Apple Pay currently accounts for around 5% of global card transactions. At its current growth rate, however, Apple Pay is on track to lock-in 10% of global card payments as soon as 2025.

Apple’s continued growth in the payment space comes at the cost of PayPal, the analysts say. “Apple Pay is indeed one of the long-term competitive threats to PayPal,” Bernstein said in its research note.

The comparison against PayPal is one that Apple itself has started to make recently. Last year, Tim Cook touted that Apple Pay transaction volume is growing 4x as fast as PayPal, while Apple Pay new user growth is also outpacing PayPal.

Bernstein analysts also note that theoretically, Apple could end up competing with the likes of Visa and MasterCard with its own payments network, that’s unlikely to happen anytime soon.

Quartz points out that Apple is able to benefit from the tight hold it has on the iPhone’s NFC hardware, which is something that has prompted regulators to look into Apple’s behavior a bit more closely. For example, EU antitrust regulators have reportedly reached out to other companies in the payments industry about Apple’s potential anticompetitive behavior.

In a separate report today, Juniper Research estimated that contactless payment transactions could reach $6 trillion globally by 2024, fueled by Apple Pay:

Read the full report here.