That's only an app, even without Dogecoin Wallet in iOS, $DOGE coin owners still can pay with another way such as web wallet, android app etc.
This news is absolutely not important to publish, does this news only aim to spread general awareness about the development of Dogecoin (DOGE) that is happening so that people will buy it? I don't think so, the period of Dogecoin is over, I highly recommend not holding Dogecoin for a long time, because this coin is different from Bitcoin, Dogecoin has no supply limit.
Ethereum? Of course Ethereum is different from Dogecoin even though they both have an unlimited supply, Ethereum has a very clear utility.
it seems that the news article is just to tell the crypto community that doge has still developments that are ongoing. but the one who develop the iOS app is third party developers not the doge team themselves. not really of a big deal but maybe, there are users that are waiting for its iOS version.
if nothing else, at least hear something about doge. but still not a solid reason to hold long-term this old meme coin. maybe for day to day payment, you can use it, but depending on their tx fee as compared to other cheaper alts like trx or ltc.