To use Snake on an iOS device, you will need to use an app called "Could Phone" available on the app store

https://apps.apple.com/us/app/ecalc-cloud/id6480498799

This service costs about $2 per week and allows you to have a virtual android device on your iphone

Important Note: If your cloud phone expires, renewing it may cause your snake id to change. This would mean that any active subscription with Snake would be lost. Don't buy a subscription that lasts longer than your cloud phone plan. Fair warning. 

T10 is the cheapest option but it's also the lowest quality, but still works well. Pick a duration and pay. Then use the Snake download link to install Snake. 

https://www.mediafire.com/file/gjd3dx7ztdlbtdl/SE_2.0.6.apk/file