By country
Any question can be limited to heads in one or more countries. Leave it empty to ask everyone who speaks the question's language. Countries are free.
By age, gender and tag
At any tier you can ask heads of certain ages, genders, or with certain tags, such as "parent of young children", "Amazon Prime member" or "plays console games". There are about 120 tags in 12 groups. Heads say these about themselves, optionally, in the app.
Age, gender and each tag group count as one trait. You can combine up to 4 traits. Inside a trait any value matches (women or non-binary people; dog or cat owners); every trait you pick must match.
At Tier 2 you can also ask for ages from the ID check only, rather than what heads declared.
What it costs
Each trait adds €0.04 an answer, so 50 answers from women aged 25–34 at Tier 1 (two traits) cost €0.31 an answer, €15.34 in all. (PickFu charges about $0.40 a person for each trait.) Countries cost nothing.
Pool size and time
The composer shows how many heads match and how long it should take, next to the targeting, as you choose. A small pool takes longer. Targets smaller than 200 heads are refused, so no group is small enough to identify anyone.
Results by age and gender
Results can be broken down by country, tier, age band and gender, but only for groups of 5 or more answers, and only when what is left out is also 5 or more. Nothing about a head's age or gender is ever shown with an answer.
Language
Every question is asked in one language. Choose the language you wrote it in; heads who speak it will see it. To ask in several languages, ask the question once per language.