I love the mobile app! It keeps getting better. But there's still a few things it needs.
I really love the mobile app, and I like the new thing they just added where you find the matching pairs. I find that the app does surprisingly well on voice recognition, though it does a lot better on my oneplus one than it does on my LG G2. It seems like the microphone gain is way too high on the LG G2 and it picks up a lot of background noise going by the visual sound meter indication on the application.
One thing that I really miss in the mobile that I appreciate in the desktop app is being able to see where I am in reaching my daily XP point level. I see with the latest version of the app there is a time when it shows you how many XP points you acquired for the day, but it seems like that just comes up somewhere along the way and it's not something you can bring up at will. Also if I'm not mistaken you can't give Lingots from the mobile app.
I'm not complaining, I love the mobile app and the desktop app and the system in general. I tried one of the competing programs and though it was free (with in app purchases) and there was both a mobile and desktop version, the mobile and desktop versions don't synchronize, and the course itself was not good at all. DL is obviously the leader in this market. I still don't understand why it's free. It's awfully good for something that's just given away. If at some point they do start charging, I hope it's a reasonable fee, or at least those of us that have been around from the start get some kind of discount.