Book Bolt extensionbookbolt.io
SubscriptionLive KDP data overlay on Amazon.
ExtensionExtension
Keepa alternatives
6 browser extensions tools for self-published authors, similar to Keepa. Compare pricing and platforms, then pick what fits your workflow.
DS Amazon Quick View(Chrome Web Store)
FreeOverlays BSR/ASIN/data on Amazon listings.
ExtensionExtension
Grammarlygrammarly.com
FreemiumReal-time grammar/spelling across 500k+ apps; browser extension.
KDSPYkdspy.com
One-timeBrowser extension scanning Kindle categories, sales estimates, traffic-light competition.
ExtensionExtension
ScribeCount extensionscribecount.com
SubscriptionBrowser extension feeding multi-platform sales dashboard.
ExtensionExtension
SellerApp extensionsellerapp.com
FreeFree Amazon data overlay (keywords, rank, estimates).
ExtensionExtension