Referral link availability

I am a developer and make alot of apps and tools where I use PushOver. When I sell these apps to my clients they need a pushover account. To incentivize your user account growth and to stimulate developers to make PushOver integrations it would be cool to have a PushOver referral link I could share with new clients so the developer gets a small percentage of the subscription fee as a reward for bringing in new customer to PushOver.