Join CritThinker
The 2-minute scam check stays free, for everyone, with no account. So does each week's Monday Trickle case.
What you get
- Monday's Trickle case, free each week. Look, ask, and spot the jump.
- The rest of the week, the casebook, and the back catalogue of past cases, for members.
- Train — short exercises in spotting scams, weak arguments and the tricks that show up in ordinary life.
- Learn to think like the great thinkers and philosophers — a library of people who reasoned carefully, in plain words, with something you can try.
- The CT test — a longer check of how you reason, with a full review at the end.
- Your progress — so your practice can follow you from one device to another.
£4.99 a month or £39 a year. The year is the better value. Cancel at any time.
The library is growing, and some entries are still short. Twenty philosopher profiles are still brief notes, not finished essays.
We'll email you before your trial ends. Cancel any time.
You will not be charged today. After 10 days, the plan you chose begins, unless you cancel first. We will email you a reminder before that date. You can cancel at any time on your billing page. The person who pays must be 18 or over. Accounts are for ages 13 and over.