Robokiller is a new spam-blocking app that blocks calls from 200,000 numbers it has stored as spam. Subscriptions run $2.99 per month or $24.99 annually. The app answers the call using pre-recorded messages designed to make the caller think they’re talking to a real person. If youre not interested in harassing your harassers and just want to block them, there are tons of apps out there that can help you make that happen.”]
Source: https://lifehacker.com/waste-phone-scammers-time-instead-of-yours-with-robokil-1824049341