Simple to use A great class diagram scratchpad for building models quickly and effectively. Utterly intuitive and frankly a joy to use. Don’t bother to read the older reviews! This is a great app! I’m a lead developer for an open source Java project and I’ve been using the free iPad app for about a month. It was a little difficult to get used to a few things in the beginning, but I’ve become prett
![astah* UML pad](https://cdn-ak-scissors.b.st-hatena.com/image/square/5068787b53add51030a5c11979c2833e903602e2/height=288;version=1;width=512/https%3A%2F%2Fis1-ssl.mzstatic.com%2Fimage%2Fthumb%2FPurple118%2Fv4%2Fcd%2Fbd%2F03%2Fcdbd038d-72e2-62ba-5082-c3a70045ce97%2Fpr_source.png%2F1200x630wa.png)