Rocket Trail 4+

This app works good for MOST Estes rockets, however the list is not complete. The observe function works good for calculating the altitude and distance of the rocket. I have not had any problems with the app crashing. Other than not including a few rockets I was able to find some similar rockets, at least in height as this is what truly matters. The list of engines is not complete either, but on most Estes rockets you are given multiple engines, which have roughly the same result. This app is not 100% accurate, but does work for estimating the landing area.

What it says the app is I like the idea, but it crashes. Started out seemingly fine, first time I picked the rocket then as soon as I picked the engine it immediately crashed and kept crashing after that as soon as it opened. Restarted iPhone 6 thinking that might help but does the same thing, then I deleted and reinstalled it and it seemed to work better and got to play around with it and still crashed but I could open it back up this time. Like I said, I like what the app promises and soon as it's fixed and it doesn't crash I'll definitely change the star rating. I put two stars but I'm sure most would put one star being as how it doesn't do anything except crashing to the home screen often. My iPhone 6 has the latest updates, Thanks

It's useless because you try to select a motor but nothing happens. I've deleted the app, reinstalled it, have to enter all the rocket data again, you bring up the motor list, no matter how many times you click on the motor, nothing happens. It'd be simpler just to add the motor data manually as with the rocket model.

It might be a good program... if it worked.

The app does nothing.