Offerwall
A partner-hosted catalogue of paid tasks embedded inside a rewards app. One app usually carries several walls, each with its own inventory — rewards from every wall land in the same balance.
Milestone ladder
A game offer's list of paying checkpoints (install, reach level 10, …). Each rung pays on confirmation, so you earn along the way instead of only at the end.
Pending reward
Money you've earned that the partner hasn't confirmed yet. It shows in your balance immediately and clears when the partner reports the completion — usually within 24 hours.
Screen-out
Being turned away from a survey after the first questions because you don't match the target group. A completed profile cuts screen-outs sharply.
Cashout minimum
The smallest balance you can withdraw. On Boinzo it's $5; some rivals set $10–$25, which quietly locks small balances in.
Welcome bonus
The $2 starting credit new members get at signup. It stays locked until you've earned $10 from tasks, so bonus hunters can't drain it.
Postback
The server-to-server message a partner sends when you finish a task — it's what turns 'pending' into paid. Delays here are why rewards sometimes take hours.