Quartile, the world's largest retail media optimization platform, is a trusted partner for multichannel e-commerce success. Through patented AI technology and unmatched expertise, we fuel growth for 5,300+ brands and sellers worldwide and manage an annual ad spend exceeding $2 billion. The award-winning platform covers major marketplaces and ad channels for optimal reach. The result is unprecedented granularity, smarter budgeting, and bespoke solutions for retailers. Visit quartile.com to learn how to boost efficiency, outperform competitors, and achieve profitability.
Quartile (quartile.com) has 565 customer reviews on Five Star Index, with an average rating of 4.6 out of 5.
Also known as
quartile.com
Website
quartile.com
Category
IT & Communication
Location
New York, New York
Listed on Five Star Index
2026
About these reviews
Replies
The company replied to 67% of reviews.
Latest
Most recent review: October 2026.
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Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
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We have had a wonderful experience so far using Quartile. We were skeptical at first after not seeing much success with other companies we had worked with, but that all changed within the first month thanks to Edward and Pedro. Edward walked us through the onboarding process and truly made it a stress-free experience. After meeting with Pedro, we developed a game plan tailored to our needs and goals which he implemented immediately. In just a few months, we have seen our ROAS triple. The Quartile app you get access to allows you to easily track how your campaigns are performing. We are very pleased with the entire experience and look forward to working with the Quartile long term team going forward.
Response from QuartileDec 12, 2025
Thank you so much, Beau! We’re thrilled to hear how smoothly onboarding went with Edward and how quickly Pedro’s strategy helped turn things around. It’s great to see your ROAS triple in just a few months, and we’re excited to continue supporting your growth with the long-term team!
MF
marshall F.
Gabriel and Gustavo.
Gabriel and Gustavo.
These guys are the best. Can we stay in launch mode forever?
Response from QuartileDec 9, 2025
Thank you, Marshall! We’re glad to hear Gabriel and Gustavo have made such a strong impact. We’ll do everything we can to keep that Launch Pod energy going and continue driving great results for you!
CG
Cyndi G.
Quartile Excellence
We were on a trial with Quartile. We have a very difficult niche product to advertise so we all knew it would be a challenge going in but we trusted Quartile to give it a try. Throughout the trial Pedro Renaux was incredibly supportive, imaginative (we are not the 'run of the mill easy to advertise and get it right product'), and used his expertise working on our campaigns for Amazon. I would HIGHLY recommend Quartile over the other similar services I talked to - you can trust they will do their best and be honest and transparent with you. Our trial has ended but we will be coming back next year (for our industry we are pretty much closed December).
Response from QuartileDec 5, 2025
Thank you so much, Cyndi. We’re thrilled to hear that Pedro’s support and creativity helped make your trial experience a positive one, especially with such a niche product. We truly appreciate your trust and your recommendation, and we’re glad our transparency and effort stood out. We look forward to reconnecting next year when your season picks back up!
LG
Luzio G.
They are the most professional in the…
They are the most professional in the market.
Response from QuartileDec 5, 2025
Thank you for the fantastic review! We truly appreciate your confidence in us and look forward to continuing to support your growth.
MI
Milenkov
Great team
Gustavo is a very knowledgeable guy, also very helpful and approachable. He helped me setting up our first few campaigns and was very responsive at all times.
Response from QuartileDec 5, 2025
Thank you so much for the great review, Milenkov! We’re glad to hear Gustavo made your onboarding experience smooth and supportive. Your feedback means a lot, and we’re excited to keep helping your campaigns grow.
NA
Nathan
Gabriel Lima is the best!
Gabriel Lima is the best!
Response from QuartileDec 5, 2025
Thank you so much, Nathan! We’re thrilled to hear Gabriel has made such a strong impact. We’ll be sure to pass along your kind words, and we’re glad your experience with Quartile has been such a positive one.
CC
CollaVita C.
We’ve been working with Quartile for…Great onboarding experience and a genuinely helpful team
We’ve been working with Quartile for the past couple of months, and the onboarding experience with Gustavo and Gabriel has been excellent. They were clear, proactive, and very hands-on in helping us get our campaigns set up correctly.
What stood out the most was how responsive and thoughtful they were — always explaining the “why” behind each step, adjusting strategies based on our account’s needs, and making sure we understood how to get the most out of the platform. It never felt rushed or generic.
We’re already seeing improvements in structure, clarity, and long-term planning thanks to their guidance. Excited to work with the long-term team going forward.
Highly recommend both Quartile as a platform and Gustavo & Gabriel for anyone who wants a smooth, well-supported start.
Response from QuartileDec 1, 2025
Thank you so much for the fantastic 5-star review! We’re thrilled to hear that your onboarding experience with Gustavo and Gabriel has been so clear, hands-on, and responsive, and that their thoughtful guidance helped set your campaigns up for long-term success. We’re excited to continue supporting your growth as you transition to long-term management.
We used Quartile for 6 months, and it has been one of the worst PPC management experiences we’ve ever had.
Our experience with Quartile has been one of the worst we’ve had with any PPC management platform or agency.
1. They never delivered what was promised
During onboarding we were assured that Quartile would improve our PPC, optimize spending, and deliver better results than manual management. After 6 months, none of this happened — our performance declined significantly.
2. Constant overspending without approval
Even after repeatedly setting clear daily budgets, Quartile overspent by thousands of dollars, multiple times. This happened throughout all 6 months. Their system simply ignores budget controls, causing huge unnecessary losses.
3. Lack of real PPC knowledge
We spoke to multiple people at Quartile, including the “excellence team,” and it became clear that while they understand their software, they lack real-world PPC knowledge. We provided lists of negative search terms that were never added, causing further wasted spend.
4. Poor internal coordination
Every time a new team member joined, we had to explain the same issues again. Instead of coordinating internally, they made us repeat everything, showing how disorganized the team is.
5. “System training” excuses for months
For 3 months we were told: “It’s early… let the system train… give it more time.”
Even after months of data, things only got worse.
6. Refusal to refund despite clear failure
We disconnected Quartile completely — meaning they are providing no service — yet they refused a full refund for the month. They hide behind terms & conditions instead of taking responsibility for their own failures.
They offered a very small “goodwill refund” which does not cover even a fraction of the damage.
7. Worst service experience in years
After 6 months of mismanagement, wasted budget, wrong decisions, lack of PPC understanding, and terrible communication, Quartile has proven to be the worst PPC service we have ever used.
We are writing this to help other sellers avoid losing time, money, and patience the way we did.
Response from QuartileNov 26, 2025
We’re truly sorry to hear that this client did not feel satisfied with their experience. While our long track record of helping thousands of brands scale speaks for itself, it never feels good to see a partnership end without the results a client was hoping for. Every business is unique, and we genuinely regret that we were not the right fit here.
To provide additional context: our team had weekly, hour-long meetings with this client across four different countries/accounts. We built detailed, category-level reports and reviewed performance each week — including sales, ad spend, and KPIs broken down by product line. Throughout the engagement, the client made several significant pricing increases due to tariffs, which naturally impacted conversion rates and sales. Even so, our team remained fully engaged and responsive. During the launch period especially, the client emailed multiple times per day, and every message was answered quickly and thoroughly.
It’s also important to note that while we value our clients’ expertise and welcome their input, this client preferred an unusually hands-on approach and frequently requested manual interventions that went against our recommendations. This included frequently adding negative keywords, pausing matched campaigns, and making manual adjustments that prevented our system from completing its learning cycle and optimizing properly. Despite these challenges, our team dedicated extensive time and communications in an effort to support the account.
Unfortunately, when the client chose to end the partnership, he indicated they were going to leave a negative review unless a larger refund was provided, even though the billing terms were clearly outlined and agreed to at signup. We never want a partnership to end on difficult terms, and we truly wish this business the very best. Not every client is the right fit for every platform, but we remain committed to transparency, professionalism, and doing everything we can to support the brands we work with.