How much longer will clash royale support IOS7?

Hello,

Ive had this question for a long time because my friend who plays clash royale owns the iphone 4 and with the release of ios 11, thought that clash royale would be discontinued on his device. Does supercell have any intentions to move their ios compatibility up anytime soon?

the only reason i am asking this is because he wont get a new phone for a while and is worried that he will loose access to both his clash of clans and royale account.

Anyone out there have and idea? I also saw a lot of apps are updating their compatibility to ios 9 minimum with apps disappearing on my friends phone every day.

I didn't find the right solution from the internet.
References:

https://forum.supercell.com/showthread.php/1640472-How-much-longer-...

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