This App does not work on ios9 – Subway Shuffle Lite Review

I bought the full app few years ago and I enjoyed it very much. I just bought an iPhone 6S with ios9 and this app no longer functions properly, can't use it all. Sent an email to their support people but email returned undeliverable. If app seller is reading this please fix the bugs. Thanks.
Review by App pass on Subway Shuffle Lite.