Best sitemap generator that can automatically create and submit

[rbai]

I like screamingfrog but they don't automatically generate and submit to google. We use xml-sitemaps.org but they don't have all the functions and they crawl slow too. Can you recommend some good sitemap generator that is fast, with features and can automatically create and submit? Is inspyder good?

[Mobilio]

I think that A1 Sitemap Generator support this function.