Mobile App Builder ‑ Swipecart

In fact, this is our third store, and we are trying to create an app with their APIs. Unfortunately, contacting customer service is rarely responsive, and if they do respond, it's usually just a brief "hello" and then they disappear. The customer service is very, very poor.

Terrible customer service I have an issue with Swipe Cart mobile App builder, you have the App listed as free on the App Store, then once I get on the information section I realized that you have many Paid plans. There is a free plan but there is a fee for uploading your App to the App the store of $49, my main issue is I downloaded the App and there is a trial time for the free plan as well, now you are asking me to pay $49 in order to access the free plan. I think this is misleading! You have not address this concern even though I reached out to you a few times, you keep asking me if I want a 7 day extension on the plan which is free. There is no way it is ethical to ask me to pay $49 to access the free plan when you have $49 listed for uploading the Apps to the App(s) store. I would not recommend this App for beginners, moreover customer service is poor, they just ignore you.

As a Client i didnt like the way how their support works.
1st i contacted them , the support replied in sometime and i had to wait hours for each reply from them on our support conversation, i told them this is unprofessional , if they cant provide proper support better don't provide any from the start.

i reached them out to fix my Swatch into images instead of buttons & to add extra Click Extra button which is already added in the website i just wanted this synced in the application , and they told me give us access and tomorrow we will do it.
i gave access waited for next day , the support contacted me that they did the R&D and the botton that i requested to implement needs the Enterprise plan or advanced. its a simple button that needs to be synced in the app and instead of retaining me as a startup client they turned me down.
thats not the issue, i could find many other competing app that would love to retain clients.
i contacted the support telling them i will not proceed with the enerprise or advanced i will go for started , just fix the Swatch image for me at least. the support went hours seeing my messages and not answering a word.
Extreme UNPROFESIONALISM.
there are many apps way better with many positive reviews

UPDATE: Rentech is aware that their response is untrue. I attempted to contact them through six email addresses for different people I have talked to throughout the process of developing the app. They have responded to all issues right up until the app stopped working at 120 days. They also ignored a request from their payment provider to get in touch with me, and at that point I initiated a chargeback. THEN they started answering the emails I sent.

They are aware that when we tested it, the app worked, and that it then stopped working just a few weeks later and never came back for more than one or two days at a time.

They also are aware that the site layout did not change until two weeks after the app stopped working. They claim the app is working now, but it still is not -- to them "it sent a push notification" means "working", even if the notification brings the user to a broken page. It IS sending push notifications again, that's true.

They are scammers, pure and simple. They'll say anything to get your money, and once they have it they stop working and stop resolving problems.

ORIGINAL REVIEW: Rentech assured us that Swipecart's mobile app would have the functions we needed for our site and app for an additional payment of $2000, but four months later it has not worked for more than a week at a time. Once we passed 120 days from the payment, they stopped responding to all requests, I'm assuming because that's the limitation on credit card chargebacks.

The app is out there on app stores, broken and useless, and I cannot get a response from the developer.