“Tasks” → “＋ New task” → write a task → “Kind”: “Required” or “Extra jobs” → “Piri coins for doing it” (or “No Piri coins”) → “Add a task”. The child sees it and ticks the circle (a photo can be attached). You tap “Accept” — the coins fly into the child's jar at once — or “Send back” to finish.
“Extra jobs” are optional: the child takes them on when they want to save up faster. “I trust them — credit right away” sends the coins as soon as the child ticks it, no “Accept” needed — handy for a daily “brush your teeth”. If the child taps “I want another task”, you'll see “… is asking for a task” — “Give a task” or “Not now”.