If you are looking for a study tool to get you through the technician test this is an excellent pick.
The three study modes are very useful. I went through the full pool once, then used the weakness mode for a while, and finally began taking practice tests. Together they were very effective for me.
Now on to the general.
I do recommend stopping when you find something you aren’t familiar with to look it up, then come back. If there is anything this app could add to be even better it would be (links to) reference materials.
Show less