While other tools boast of "3 million books" - we have over 21 million.

In a side-by-side test, Zen Arbitrage returned over 10x more books than any other tool.

With our "one software, multiple businesses" approach we offer multiple ways to profit off online book arbitrage.

Other guys? Just one.

Current rank can be misleading. The only true measure of a book's demand is its average rank.

And only we give it to you.

We offer the world's only textbook database: curated collection of over 300,000 textbooks (in addition to our 20 million+ regular database).

Found out exactly how much money you'll make with a book - before you buy - using our built-in profit calculator.

We display Amazon trade-in value for every book in Amazon's trade-in program.

Want to skip selling altogether? We got you.

Find a profitable book, but don't want to buy it wait for it to sell?

List it for sale in our Marketplace - where other sellers will pay you for the ISBN of the books you find. 

Don't want to take time searching our database?

Skip right to the profit by paying other sellers to access ISBNs they've already found - for pennies on the dollar.

Sad but true: Founders of other tools only pretend to sell on Amazon in order to sell you things.

We are founded and run by real Amazon sellers with over a decade in the  game.

No contracts.
No sign up fee.
No strings.
One-click cancellation.

Simple as that.

Zen Arbitrage is 100% web-based.

Login and access on any device, anywhere there's an internet connection.

Search by number of offers, new or used price, sales rank, Amazon's price, trade in value, book category, title, and lots more.

Our search options are catered to hone in on the most profitable books.

Our unique price drop alert feature let's create a list of books to monitor.

As soon as the price drops below the price you set, you'll get an email instantly.

Export your searches to a spreadsheet, and slice and dice the data in Excel any way you want.

Unsure what books to buy? Email us any books you're thinking about buying, and we'll give you our  analysis.

We'll tell you if we think you should buy or pass, and why so you can make the most profitable purchases.

Access years of recorded webinars, where we cover not just using ZA, but every aspect of selling on Amazon.

Get a virtual PhD in Amazon selling.

While other tools use affiliate links to line their own pockets, we make sure a portion of every book purchase goes to the charity of your choice using Amazon's Smile program.

When you sign up, we'll email you a conservative formula for using Zen Arbitrage to make an extra $1,000 a month.

Adjust upwards or downwards to meet your revenue goals.

To maximize your profits, we offer a full palette of analytics tools.

Compare prices on dozens of sites, link to an items' price history, ISBN search, historical data, and more.

We make everything simple, breaking down the entire process - from searching to profit - in a step-by-system.

The highest-earning sellers have their secret list of profitable searches.

When you find a profitable search combo, you save them for future reference using our "Save Search" feature.