iOS Developer & Bluetooth LE Veteran
Xcode Instruments and DYLD_PRINT_STATISTICS are very useful but sometimes you need to visually confirm the data you want has been displayed on the screen when measuring times.
You can use a set of Amazon web services/developer tools to build a voice enabled IoT solution. The services/tools needed:
Here are some tips as the official Amazon IoT github repository (https://github.com/awslabs/aws-sdk-ios-samples/tree/master/IoT-Sample/Swift/) is not updated regularly.