“They're a great CAPI integration on Meta and work extremely well with Klaviyo and Google as well. Beyond just the tech, they've been a great partner. They get back to me when I'm panicked about ad performance and dig into the pixel setup. They help me diagnose, guide me on future implementations, and are, altogether, a very reliable partner for a service that absolutely cannot slip. The dashboar”

“I’ve been using Upstack for about two weeks and the experience has been extremely frustrating. First of all, support is basically non-existent. I’ve contacted Michael multiple times regarding dozens of warnings showing up in Events Manager, and he simply does not respond. When he does reply (rarely), it’s clear he hasn’t read my messages carefully and ignores the screenshots I provide. Second, t”

“Not only have we noticed improved performance on Meta and Klaviyo but the support is second to none. Any issues we've had Michael has arranged a call immediately to diagnose the issue. Amazing product and service!”

“This app has been incredibly helpful in navigating Meta’s new health policy changes. It provided an effective solution for fixing custom event tracking, ensuring our campaigns remain compliant and still track. Highly recommend it for anyone facing similar challenges!”

“Great developer, they think with you and with the great expertise our webshop is completely scaling proof again”

“This App is great and their team is very intelligent and helpful. Integration was simple and they also helped fix our attribution issues from Klaviyo and Facebook. Michael, specifically, from Upstackified has been an asset to our company.”