Which ZennoPoster version do I need?

Hi,

I'm planning to buy Zennoposter, but I'm not sure if I really need the Professional version or if Standard or even Lite is enough. I don't care for the proxychecker speed, nor do I need email support. I just can't estimate which difference a higher number of threads makes. Can someone give me advice please?

Regards,
Erbsensuppe

multiple threads allows you to run your program multiple times simultaneously thus saving you time.

1 thread = run your program 100 times after each other
10 threads = run your program 10 times after each other in 10 threads.

Thanks for your help