This package has been abandoned:
This application has been abondened because I simply don't have the time to take good care of it and keep it up2date. I've released the source code for it under the MIT license so it can be used as a base or as reference if needed.
https://www.payssion.com/en/index.html Gateway for commerce!
Payssion 2.0 is compatible with IPS >= 4.4.1, for 4.4.0 there is no compatible version. For 4.3.x and 4.2.x use Payssion 1.0.7.
Thanks to @krikri89 for sponsoring it to the marketplace!