Book Track might be a bit more popular than Crystal. We know about 1 link to it since March 2021 and only 1 link to Crystal. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Crystalknows.com: 5. I don't know how to find the rest. Source: about 3 years ago
I’m using Book Track. It’s an app for iPhone/Mac. Source: about 2 years ago
Adblock Fast - A faster ad blocker for browsers and iOS 9
Literal - Track your reading and discover your next favourite book
BlockBear - Block ads and protect your privacy on iOS with a bear
Readup - Track and improve your online reading habits.
1Blocker - 1Blocker is a content blocking software that you can rely on to save time and money. Unlike its competitors who use JavaScript to block ads after they have been download, 1Blocker does the contrary. Read more about 1Blocker.
Bookling - Track your reading habits and set goals