Starting with SDK 9.0, trial keys are valid for 45 days. This time frame should allow developers to test the tech but, in case one needs more time, we’d be glad to review key extension requests. 

If a Trial Key, for example, was generated on the 1 May 2020, then it will be valid until 15 June 2020. After 45 days from the moment of generation, the trial key will expire and will not function anymore.