Do I need an account to keep a score?

No. The games run in your browser and show your score right away. There is nothing to sign up for.

Are these a real measure of intelligence?

No. They measure specific things like reaction time and short-term memory, which are fun to track, but they are not an IQ test or a diagnosis.

Do they work on a phone?

Yes, most run fine on a touch screen as well as a desktop.

Yes, free and account-free, supported by light advertising.

Brain games and tests

Measure and train reaction, memory and focus, right in the browser.

Open the tools 27 tools, all in your browser

These are quick games that put a number on how your mind is doing: reaction time, memory span, focus, and simple logic. Some are a test you can retry to beat, some are just fun to poke at between tasks.

They run in the browser with no sign-up, so you can jump in, get a score, and compare it next time without an account tracking you.

Which tool for which job

Reaction time: See how fast you respond, and try to beat your own number.
Memory span: Test how long a sequence you can hold and repeat.
Number memory: Push how many digits you can remember at once.
Focus games: Work on attention with quick, repeatable challenges.

Questions about the brain games

Do I need an account to keep a score?: No. The games run in your browser and show your score right away. There is nothing to sign up for.
Are these a real measure of intelligence?: No. They measure specific things like reaction time and short-term memory, which are fun to track, but they are not an IQ test or a diagnosis.
Do they work on a phone?: Yes, most run fine on a touch screen as well as a desktop.
Free?: Yes, free and account-free, supported by light advertising.