Difference between Estibot and beta.estibot?

[domain]

I am not getting it and I`m too tirede now to check everything or bother Spade... Last time I used the site was one and required login to appraise a domain...now there are sites, free to use and premium service. Appraised one domain and got 2 different prices. Why?

[navyfrank67]

Looks to me like it gives a better value of what a website is worth.
Also has buyers that you can send the offers to.
Looks ok