I bought the lifetime deal which worked for a year and then suddenly the bots stopped working. There was no response at all from the developers, CEO, nothing. In fact, if you check their Facebook page, or the reviews on google, you will notice several comments about the same issue. If they ever come back to AppSumo, stay away, because they will disappear, and if your business relies on this tool, you are over.
I had to remake all the bots one by one because, with no prior notice, they just stopped working. No matter how good the deal is, STAY AWAY FROM THIS COMPANY.