DMVDrivingPermitTestPrep would be great if not for three major flaws.
1.) In my experience, the practice tests fail to consistently recycle only "incorrect" questions or only "not attempted" questions. I usually get a mix of everything no matter which mode is selected.
2.) A glitch causes the tests to frequently end prematurely with a list of redundant "Null?" entries instead of valid questions and available responses. Perhaps this is only an issue with certain iOS builds, but it is a major handicap.
3.) There are numerous spelling and grammatical errors built in to many of the questions. How, then, could transcription of DMV-administered questions be trusted to be factual, up-to-date and accurate?!
Who has time for this?
Sorry, dev team, but I could not take DMVDrivingPermitTestPrep seriously even if, in full functionality, it were free. But as a paid app? I think "full refund due" and "needs revision" would be apt and fair judgments from a paying buyer.
There are other, FREE app alternatives for DMV test prep that are far more accurate and useful.
I recommend that the prospective buyer save their time and money and keep looking.