Invulnerableimmunity review for CartHook Post Purchase Upsell

Feb. 26, 2021

I have been with Carthook in the past, and they have always had a very severe attitude problem when their app has a bug and doesn't work properly. In my most recent case, there was an issue with the custom tracking code. I reached out to them, and after 30 back-and-forth emails PLUS a rude and incompetent customer service, the CEO decided to revoke the account. PLUS, they also overbilled me, BANNED my account and refused to refund me. I have spent over 1,000 dollars on wasted ad spend, and will now proceed to opening a dispute with them. The current carthook version is a total joke too. The whole purpose of an upsell app is to make you more money. HOWEVER, due to the extremely slow load speed, the app will murder your conversions- Amazon has done a study to show that for every 1s longer an app takes to load, it will kill your conversion by about 10%. Carthook takes about 6s to load- 3s more than shopify's native checkout pages and that means you earn 30% less. This app will cost you more money than it can make you. All in, don't bother wasting your time giving this app a try.