QuartileReviews of quartile.com

Before joining Quartile I was in charge of managing 1000+ campaigns in Amazon. As you can imagine this took a lot of time, effort and energy. After partnering with Quartile their collaboration has allowed me to focus on other areas/platforms of opportunity while relying on them to efficiently scale our catalog. Augusto has been great to work with.

When I first heard about Quartiles, I was skeptical of their capabilities. With over 15 years of selling experience and managing all my ads in-house, I wasn’t sure they could impress me. However, after onboarding one of my brands, I’ve been pleasantly surprised by their professionalism. They’ve delivered on every promise they made, keeping my ACoS within a desirable range while their system continuously optimizes my ads. For a new seller, Quartile is an affordable way for a new brand to offload their Amazon advertising efforts and achieve great success.

We are doing the Amazon DSP with Quartile, and the sales increased. Our manager Leo is always keeping an eye on our budget, ad spend, and performance. He is doing a great job to keep our performance better and better.

One of the most effective ad agencies. Quartile is one of the most effective teams we've worked with in the past 4 years. Clear communication, focused implementation, and great service.

Marina is great to work with!

Quartile has been amazing to work with - they optimized our ad spending significantly and have helped ramp out sales by 5X within the first month. Truly a pleasure working with them!

Gustavo and the whole team is great to work with! I really appreciated the information that Gustavo and his team at Quartile give me in all of our meetings. Along with their great customer service, they give great insights on performance and where there is opportunities to grow. They don't push you to spend more money, they just give the raw data and allow you to make the decision with no pressure. I recommend Quartile to anyone that needs some assistance with Amazon, especially if you can get Gustavo as your rep.

Quartile charged me after I canceled my account, and they’re refusing to refund it. I canceled my monthly subscription on March 24, 2025, yet they still billed me for another full month of service I did not use and did not agree to. When I contacted them, they hid behind confusing fine print in their Terms & Conditions, claiming there’s a “30-day notice period that begins on your next billing cycle.” This policy was never made clear at the time of signup or cancellation. Let me be very clear: I canceled. I stopped using the service. I was still charged. Their Terms are written like a legal trap, full of vague, complicated language that makes it almost impossible for the average person to understand what they're really agreeing to. This is not just poor customer service, this is deceptive, predatory billing. Why would anyone knowingly pay for something they're not using? Quartile is counting on people being too busy or confused to fight back. If you’re considering doing business with this company, be very careful. Their cancellation policy is a scam, and they make it incredibly difficult to get your money back. This company needs to be held accountable.