Alitzure is pretty good and free. IMHO it's better than DD (and it's FREE). You're limited to the size of the project, kinda, if you go over the limit you basically get put on the back burner, your render may take a long time or not get completed. The project below was over twice the allowed amount and still rendered just fine (MUCH faster than the same data set on Drone Deploy too). I really liek the app (I'm on Android), easy to use and so far no fly aways! lol
We have tried DroneDeploy. Seems to work well. They gave us very good customer service too. Helped me get better images and even extended my free trial because I couldn't fly much here because of the weather. Virtual Surveyor also has a free 14 day trial. What I like about Drones Made Easy is, it's a pay-as-you-go service OR you can do a monthly subscription. I also like what I see with Precision Hawk. You can download their app for free but not sure if they offer a free mapping trial.