Do you pay more than £90pa for your take off software?
QuickScale licences are bought outright, not annually. The Plus desktop edition is £269 ex VAT. If you kept the same pc for 3 years, it would cost you the equivalent of £90pa.
The Standard is £169 outright or the equivalent of £57 pa over 3 years.
The Lite is £109 outright or the equivalent of £37 pa over 3 years.