Not very user friendly (updated)
[Update. I would like to thank developer Toshiya Hondo for the kind offer of help. Such passion deserves another star. Thankyou] Despite the efforts of the developer and excellent graphics which adjust to show the resulting shape of the triangle, this app does not work intuitively. Consulting 'help' only helps a little because some of the descriptive terminology is unclear. For instance, when I tried clicking the grey frame as (I thought?) I was being instructed, nothing happened. Also, I could not find a way to get the app to display decimals in the angles which appear to be being rounded to the nearest degree, despite seeing an example with decimals. I found no way to alter the default setting for increased accuracy. I feel a lot of potential for this app but it's a shame it does not use a generic triangle, transforming according to minimum input without the need to first make a selection from the top bar and then ensure subsequent instructions are correctly followed.
