How much time do repeat questions cost you?
The same five questions, answered one at a time, add up invisibly. Put your numbers in and see the total. Everything runs in your browser — nothing is sent anywhere.
/ week
min
15 × 5 min = 1.3 h a week, and a month is 52 ÷ 12 ≈ 4.33 weeks — so:
≈ 5.4 hours a month
65 hours a year.
Rounded on purpose — three rough inputs don't earn four decimal places.
What a twin changes.
Most of those hours are the repeat ones — and those are exactly what a twin takes over.A hiy twin answers from your own material and cites where each answer came from — and when it doesn't know, it says so and queues the question for you instead of guessing.