Rilievo was payed until 3.8. x version. From version 4, Relief becomes free with the possibility of purchasing by subscription of in-app module. For example Save DXF, Trilaterazione, Saving PDF, Inserting a line between two points, etc… are some of the modules can be purchased inside the app. You can see directly while using the app which features require subscription.
This change makes buying targeted and calibrated to the specific needs of each user. The developer (that would be me) It is not forced to increase the price for the app's functionality and increase ’ l ’ user can only buy what you actually need.
Not to force old users (already prominent buyers) such buy again functions that have always been available, We created a support where to register your accounts.
All those who, having purchased Relief, Register to our servers will be classified as users PREMIUM and have access to the modules Save DXF and Trilateration without having to do anything.
The old survey users Demo, will instead be classified as users DEMO and will be able to use Relief in its free version without additional modules.
With registration, PREMIUM DEMO users, will receive for free the in-app module “SAVING JPG” !
Both types of users can buy additional modules at any time to update the ’ app to suit you.
If you have any questions do not hesitate to contact me.