This company is evil.
If you pay for a lifetime upgrade...that ONLY applies to that SPECIFIC version.
Complete greed and false advertising.
When screens 6 comes around..you have to pay for a "lifetime" upgrade for Screens 6, and so on.
They take no responsibility or accounting for this and use standard legalese / corporate language to justify it.
Don't buy this!!! There are PLENTY of better options now, at least that I found. Don't support greedy devs.