SPAD.neXt comes with a 14 days trial of the 'complete edition'. After 14 days a valid license Key is required. No refunds will be granted, if you do not make use of the 14 days trial and then recognize SPAD.neXt is not working for you.
If your update subscription expired, and you do not want to renew it, you can use older Versions of SPAD.neXt.
Note, that those Version will not receive any content updates.
0.9.6.54 if you update subscription expired before Dec. 15th 2019
0.9.7.86 if your update subscription expired before Aug. 18th 2020