Articulation Station is the app that the students have been using with me for articulation practice. This app is very versatile and I really enjoy working within it! It comes with the /p/ sounds for free and additional sounds may be purchased for a few dollars. I really enjoy this app because it allows you to add personalized words. This means that you can take the words that you have been compiling on your word lists and add them to the app to practice! You can add a picture, word and sentences. You can also record the sentence so they can hear a good model before attempting their own production. There is a function within the app to record audio so your student can play back their practice session and score themselves!
If you have any questions about whether or not this app would work for your student or more specific questions about how to use the app with your student, please feel free to contact me!