Hello, to continue using Lightroom Mobile Premium functionality on your iOS device using service you originally setup on Android, you will need to sign into Lightroom using the same email ID you used to sign in on Android. I see no subscription history at all for the email you used to post for help here, which means that you must have signed into Lightroom with another email ID. (The email ID you use for Lightroom can be different than the email ID you use for Google Play)
If you cannot remember which email ID you use to sign into Lightroom and see your Premium service, please contact Adobe Support directly for more help. Visit https://helpx.adobe.com/contact.html, sign in, and then select the chat option.