I have created a skill and would like to test it on the device itself?
I have managed to test it on echosim.io.
On the test step at developer.amazon.com I can enable it for testing: This skill is enabled for testing on your account
I guess you have to use the same amazon account in the alexa app and in the developer console.
You will be able to see your skill in the Skills tab in Alexa App and you can enable the skill and start testing.
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The skill is available in "Skills > Your Skills" page of the Alexa App when you select 'Yes' above. You can then enable the skill and test its functionality by asking Alexa, ...