Listed under the Health and Fitness category under Apps Store whereas SleepCheck is listed under Medical.....says it all doesn't to the user doesn't it???? RMD actually did a JV with Verily (subsidiary of Google) last year to try and develop a product like SleepCheck which hasn't been successful......
https://hotcopper.com.au/threads/sleep-check.5375311/page-6?post_id=44397634#.XyY2USgzZPY