I tried http://deletebacklinks.com/ it is completely useless. I had 16,000 backlinks coming from one domain, which is in a "bad neighborhood" and not a single backlink was detected. In fact none of the backlinks were detected and there are about 60,000 backlinks.
I've only used Link Detox so thanks for other suggestions. It's possible to pay for the first credit by the Tweet buy my friend told me that after he did it, some spammy posts appeared on his profile. When I did the same in January, I didn't have such problems. The problem with unnatural links warning is the quantity of links, that's why it's really hard to do such analysis with no automatic help. You just need information about whether the link is still live, which links are nofollowed and which come from the banned domain or the one that redirects to other domains. And that's the information that the tool can do and make your work faster so I'd still use it.
Sorry, but need to make clear that rmoov does not provide link analysis, precisely because we do not believe it is possible for automated analysis to be accurate. rmoov is an outreach tool built specifically for link removal work - it allows users to create and manage outreach campaigns at scale and report on them in detail for the purposes of reconsideration. Development is aimed primarily at those dealing with manual spam actions, but of course that means it is also suits the needs of those who are removing links for other reasons (penguin algorithm issues, reputation management etc). I get slightly offended at being lumped in with the crowd when comments like "they are all scams and rip offs in one way or another" are made. Most especially because in our case, such comments are based on assumption. We work hard to provide a helpful, low-cost solution (including a perpetual free trial) and around-the-clock support. If anyone has any issues with our service, we would genuinely appreciate them contacting us to let us know about the problem so we can do our best to fix it.