Here is the thing, the Jebao dosing pump Dp-4 is an anomaly in aquarium equipment, it's ULTRA cheap for what it does.
I don't know if you saw my video about on Youtube, I talk about it. Right now I also have another dosing pump from EcoTech but this is invert of price, most expansive, but reliable and lot of control.
I think the Coral Box 4 pump wifi is a really great alternative for the price. To be honest, I don't really care about Wifi, I don't change much the setting and changing the setting on my Jebao is MUCH fast than any App with smartphone.