Skill Swap
Trade a skill with a friend or family member, like a cooking lesson for help with a chore. Post a short write-up.
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Business · Facts & stats · iChallenge network
Daily facts and stats about bartering, trade and the history of money, plus real challenges to put them to work.
What is barter's 'double coincidence of wants'?
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One ranked attempt per day. Practice as much as you like.
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Trade a skill with a friend or family member, like a cooking lesson for help with a chore. Post a short write-up.
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Learn one fact about the history of trade or money each day. Check in once a day.
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Swap an item you no longer need with a friend or family member instead of buying something new. Post a short write-up.
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Live counts from BArtErChallenge.com. All arena stats →
Earned on any arena, shown on your profile everywhere.
Add your email to keep your level, streak and badges if you switch devices, and carry them to every iChallenge arena. One email when you save; no spam.
Fund a prize on BArtErChallenge.com and your brand sits on the challenge card, the leaderboard and every finisher's share. Prizes only appear once they're funded, so players can trust what they see.
Yes — you own everything you create. Posting a score never transfers rights.
Completion and streaks score points; community votes add bonus.
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.