The engine is good, simulation seems pretty acurated. The builder mode just doesn't work. I paid for the full version only to be able to build my own models, but I can't edit anything or eiher save the experiments. Every single text box don't work, so I can't edit the values, or input a name to my model in order to save it. Also, when simulating, it doesn't prevent the phone to turn off. You have to keep touching the screen all the time otherwise it will stop your simulation in the middle. I hope they fi
Really nice App. On current Version of Android it works really fine. For me it's the best physics education app I found to use in Highschool. Best way is to use it on a Tablet, then it is really an awesome product of software design and physic simulation!
Saving experiments Something going on with the keyboard input where I can't save experiments.
Minor correction on supported screens declaration
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