Unlocked Pro version.
Requirements: Android 5.0+

IELTS Speaking Pro easy to improve IELTS Speaking Band. This application has 60 Full Tests and more than 1000+ Cue Card samples of IELTS Speaking tests, from where they are completely free and users can practice, get idea from sample answers.

https://play.google.com/store/apps/details?id=ielts.speaking.pro&hl=en