Microsoft has recently added a new reading fluency practice feature to Immersive Reader called Reading Coach. Using a tool that has Immersive Reader such as Microsoft Word, a learner reads a passage aloud. Reading Coach then analyzes the audio to provide specific, personalized feedback to the individual including five target words to practice. The feedback includes measure of a percentage of accuracy, time spent reading, and words read accurately per minute. Learners can keep a record of their scores and use it to document progress over time.
This video provides a quick demonstration: