reCAPTCHA spambuster , 6 reviews

This is saving us a lot of time by correctly marking spam as spam so it's easy to filter it away and only see the comments that matter.

Installed this app, which just took a moment. It works perfectly to get rid of the 100's of daily spam comments (often a series of 6-9 random characters, or viagra etc links) without us having to manually select 20 at a time in Shopify and delete or mark as spam. Saves a ton of time. Highly recommended. Their support is also great, they provided some custom CSS for me to dial in the formatting perfectly for our website.

If you have a blog on Shopify then you will know how poor the spam filtering is, this is the only app that I have found that sorts the problem. I've been using it for several weeks now and it works perfectly, impressed!