pCloudy provides you the cloud platform to perform Automated Testing on Real Mobile Devices. pCloudy supports most of popular open source tools. 

To schedule automated testing over pCloudy, go to the Automator page.

Here, you can use choose your tool based on type of mobile OS (android/iOS) . Further, you need to choose application file (.apk/.ipa), zip file of test script, enter time duration (default - 15 minutes), test cycle name (default - Test cycle). 

Now, browse, select and add desired device(s) to schedule test automation.

When test automation gets completed, you will get an email reminder for the test completion.

Here are some links to help you.