After an evaluation period of 30 days you have to buy a licence for the program. Otherwise it will stop working.
One licence is required for each computer the program is used with.
You can easily pay with PayPal, the most common international
payment system for the web.
PayPal is very simple and safe: all you need is an e-mail address
and either a credit card or a debit card (check card).
The PayPal membership is completely free. You only pay exactly the price
shown in the pricing table below. No tax and no transaction fee.
You can pay with any currency. It is automatically converted to Euro.
Visit the
homepage for detailed
information.
You find your serial number on the "Golden Ratio Trial Information" screen of the program.
Serial number |
Click on the "Buy Now" button corresponding with the desired number of licences.
Number of Licences | Price | Price per Licence | Estimated Price in US Dollar |
1 | 15.00 Euro | 20 $ | |
3 | 10.00 Euro | 40 $ | |
5 | 9.00 Euro | 60 $ | |
10 | 8.00 Euro | 110 $ | |
15 | 7.67 Euro | 150 $ | |
20 | 7.50 Euro | 200 $ | |
30 | 7.00 Euro | 280 $ | |
40 | 6.75 Euro | 360 $ | |
50 | 6.50 Euro | 430 $ | |
100 | 5.80 Euro | 770 $ |
After the payment you will get from the PayPal site back to the Golden Ratio site where you find your licence key.
Start the program Golden Ratio.
Then enter this key into the text field at the bottom of the "Golden Ratio Trial Information" screen
and click on the "Check Licence Key" button.