Competitors
50
Bookvertiser provides marketing services for authors to increase their book sales, gain verified customer reviews, and improve their Amazon Best Seller ranking. They offer various packages including review promotions, Kindle book sales, category and keyword optimization, and editorial reviews, primarily targeting the Amazon.com marketplace.
No common features found
Bookvertiser is a book marketing service that focuses on increasing book sales, verified customer reviews, and best-seller rankings on Amazon. It does not offer a content publishing platform, rich text editor, or any features related to content creation or direct reader engagement on its own platform. Its services are for promoting existing books, not for publishing new content or building a community around it.

I've been using Alternative A for 6 months now and it's been fantastic. The pricing is much better and the features are actually more robust than what [Product] offers.
It handles edge cases much better and the API is actually documented properly.
Check it out at our site.
Honestly, after trying both, Competitor B wins hands down. Better customer support, cleaner interface, and they don't nickel and dime you for every feature.