Built on the same cognitive frameworks used by academic researchers and clinical psychologists worldwide. Randomized every time. Full results for $1 — charged once, never again.
We built 1buckIQ to be exactly what it says it is.
25 randomized questions across logic, pattern recognition, spatial reasoning, and verbal comprehension. About 15 minutes.
One dollar via Stripe. No account. No auto-renewal. No fine print. Your card is charged exactly once and never again.
Your IQ score, percentile rank, and a full breakdown across all 4 cognitive domains. Honest scoring against real population data.
Our test is built around the same four cognitive domains used in peer-reviewed academic intelligence research — not invented for entertainment. Each question type maps directly to established, validated frameworks.
Sequences that require identifying the underlying rule and predicting the next element. This domain measures fluid reasoning and working memory — core components of general intelligence.
Visual pattern completion tasks modeled on Raven's Progressive Matrices — one of the most widely used non-verbal intelligence measures in academic and clinical psychology since 1936.
Three-dimensional thinking tasks that assess how you mentally manipulate and rotate objects in space. Spatial reasoning is strongly correlated with STEM aptitude and fluid intelligence.
Logic, vocabulary, and analogical reasoning questions that measure crystallized intelligence — your ability to apply learned knowledge and language-based reasoning to novel problems.
Other IQ sites charge $1 upfront, then silently bill $30/month. Thousands get caught off-guard. 1buckIQ was built specifically to fix this.
40 original questions across 6 cognitive domains — Number Series, Letter Series, Matrix Reasoning, Verbal Analogies, Spatial Reasoning, and Logical Deduction. Based on the same academic frameworks used in peer-reviewed cognitive research. Results unlock for $1 after completion.
Quick reactions help people adapt to challenges and make decisions under pressure.
Your IQ score places you between these two notable figures. Unlock for $1 to see exactly where.
Real users. No inflated scores to make you share.
"Finally an IQ test that doesn't trap you. Checked my bank — $1 charged, nothing since. The 4-domain breakdown was genuinely insightful."
"Another site charged me $29.99 three months in a row before I noticed. 1buckIQ is exactly what the internet needed — honest and one dollar."
"Got 112. Not the inflated 140 the other site gave me, but it felt real. The spatial reasoning section explained exactly where I lost points."
"My whole office took it as a bet. $1 each. Compared results over lunch. Way better than paying $30/month for brain games I'd never use."
"Retook it after two weeks of logic puzzles and went up 6 points. Randomized questions mean you're actually being tested — not remembering answers."
"Questions were legitimately hard. Got 103 — probably accurate. Refreshing to see a site that doesn't pump your ego just to get a screenshot share."