A single BSR number tells you where you are. Momentum tells you where you're going.
14-day free trial · No credit card required · $19/month after
You check your BSR occasionally and it seems okay. But is it better than last month? Are your competitors gaining on you? Is your category getting more competitive or less? A single data point doesn't answer any of these questions. By the time you notice a trend, it's already been happening for weeks.
Without Rank Momentum:
With Rank Momentum:
Rank Momentum tracks your BSR over 7, 30, and 90-day windows and visualizes the trend. We also track your competitors' BSR movements in your category, score category saturation (is it getting harder to rank?), and surface 'heating up' and 'cooling opportunity' signals - categories where the competitive landscape is shifting in your favor.
Three steps from sign-up to insight.
We start collecting daily BSR snapshots immediately. Momentum data begins building after 7 days.
7-day, 30-day, and 90-day trend lines show whether you're gaining or losing ground.
Category saturation scores update weekly so you see competitive changes before they hit your rank.
PublishRank's flagship feature is daily Amazon book monitoring. Every book you add to your account is scanned every day for BSR shifts, new reviews, ranking changes, and bestseller badges - with instant email alerts the moment something happens and a weekly Monday digest summarising every book in one email.
This tool sits on top of that monitoring data. Your scores, gaps, and recommendations refresh automatically as your real-world metrics change, so the advice you see today is based on what's true today - not a snapshot from last week. It's the difference between a one-time research tool and a live intelligence platform.
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