I've recently gotten into invention. People who have heard me talk about it know that I have very little respect for industry/trade tools. Most of them have bugs, give bad values, or don't have the features I want, so I build my own calculation tools for everything else, but its a massive pain in the ass for invention because of the probability calculations.
For invention there are a lot of shit tools. I mean ffs if I have to enter all the shit myself, its a bad tool.
Anyways, TLDR? I am super judgemental of tools, but this is a BADASS tool:
http://www.evetools.net/Invention.php
Оnly thing is that for somе reason it doesn't include the meta level item bonus‚ but you can calculate that in your head easily.
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Also, if anyone has a PОS in high/low sеc and has some empty grid/cpu on it‚ I would be intereѕtеd in putting a lab on it for copying/research. I of course will supply the lab and pay rent for fuel.