Apple's iPad Pro might not be alone.
Future version of the Apple iPhone might have a feature you can only find in the company’s iPad Pro tablets.
The tech giant is planning to bring “digital pen” support to iPhones starting in 2019, Korean news outlet The Investor is reporting, citing people who claim to have knowledge of the company’s plans. Apple is working on the feature now and has already held talks with digital stylus companies to see how the feature might work with a future iPhone update, according to the report, which was earlier discovered by 9to5Mac.
Apple AAPL offers a digital stylus already called the Apple Pencil. However, the accessory, which is about the size of a real pencil, is only compatible with the company’s iPad Pro. Apple Pencil allows users to digitally “write” on the iPad Pro’s screen to annotate and sign documents, and take notes. Apple Pencil costs $99.
Apple’s chief competitor in the smartphone market, Samsung, has offered a digital stylus with its Galaxy Note line of devices for years. Its most recent smartphone, the Galaxy Note 8, similarly comes with the company’s S Pen stylus.
Get Data Sheet, Fortune’s technology newsletter
While some customers have called on Apple to offer a stylus, the company has been loath to do so after late Apple co-founder Steve Jobs said when the iPhone was announced in 2007 that touch input is far superior to stylus input. And each time Apple has been called on to consider a stylus, the company has balked.
However, in recent years, Apple patents have surfaced that point to the company at least considering a stylus for its iPhone. Apple CEO Tim Cook also said last year in an interview with Apple-tracking site Daring Fireball that “if you’ve ever seen what can be created with that Pencil on an iPad or an iPhone, it’s really unbelievable.” His comment ignited speculation that Apple is testing a stylus for the iPhone
Still, Apple has remained silent on possible plans and hasn’t discussed bringing Apple Pencil to any other devices. And it’s also worth noting that two years is a long time in the technology industry. And although Apple might be considering iPhone stylus support for 2019, things can change and the concept could be scrapped without much notice.
Apple did not immediately respond to a Fortune request for comment on the report.