A few other points about zferral: 1) We have flexible campaigns (change % without changing links) also enable recurring commissions, rev share and large up fro

A few other points about zferral: 1) We have flexible campaigns (change % without changing links) also enable recurring commissions, rev share and large up front with lower recurring. 2) You can create custom currencies (points, t-shirt, gold stars, discounts) you name it. 3) We have an open API for seamless integrate into your HTML/CSS. 4) it's free to start